diff --git a/Cargo.toml b/Cargo.toml
index 67d27d9..b960f7c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "onesignal-rust-api"
-version = "5.6.0"
+version = "5.7.0"
 authors = ["devrel@onesignal.com"]
 edition = "2018"
 description = "A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com"
@@ -11,6 +11,9 @@ serde = "^1.0"
 serde_derive = "^1.0"
 serde_json = "^1.0"
 url = "^2.2"
+uuid = { version = "^1.0", features = ["v4"] }
+tokio = { version = "^1.0", features = ["time"] }
+
 [dependencies.reqwest]
 version = "^0.11"
 features = ["json", "multipart"]
diff --git a/README.md b/README.md
index 77094eb..bf0a870 100644
--- a/README.md
+++ b/README.md
@@ -4,15 +4,15 @@ A powerful way to send personalized messages at scale and build effective custom
 
 For more information, please visit [https://onesignal.com](https://onesignal.com)
 
-- API version: 5.6.0
-- Package version: 5.6.0
+- API version: 5.7.0
+- Package version: 5.7.0
 
 ## Installation
 
 Add to `Cargo.toml` under `[dependencies]`:
 
 ```toml
-onesignal-rust-api = "5.6.0"
+onesignal-rust-api = "5.7.0"
 ```
 
 ## Configuration
diff --git a/docs/DefaultApi.md b/docs/DefaultApi.md
index fc7e0b4..6ad705e 100644
--- a/docs/DefaultApi.md
+++ b/docs/DefaultApi.md
@@ -62,9 +62,16 @@ Every operation requires either a **REST API Key** (App-scoped, used by ~77% of
 
 `POST /notifications` accepts a top-level `idempotency_key` (UUIDv4) that the server uses for request dedup within a **30-day window**. Pass a freshly-generated UUID per logical send so that network-level retries are safe. Never reuse a key across distinct sends — the server returns the original response instead of acting on the new payload. The hero `create_notification` example below demonstrates the call.
 
+Prefer the bundled `helpers::create_notification_with_retry` helper over wiring this up by hand: it generates the key when absent (a caller-provided key is respected), retries 429 / 503 / connect/timeout errors with the **same** key (honoring `Retry-After`, exponential backoff otherwise; `max_retries` / `base_delay` configurable via the options struct), fails fast on other errors, and reports via `was_replayed` whether the server answered from a previously completed request (`Idempotent-Replayed` response header):
+
+```rust
+let result = onesignal_rust_api::helpers::create_notification_with_retry(&configuration, &mut notification, None).await?;
+println!("{:?} replayed={}", result.response.id, result.was_replayed);
+```
+
 ### Error handling
 
-When a request fails, the future resolves to `Err(onesignal_rust_api::apis::Error<...>)`. Pattern-match on the `Error::ResponseError(content)` variant to access `content.status` (`reqwest::StatusCode`, the HTTP status code) and `content.content` (`String`, the raw JSON envelope). Other `Error` variants (`Reqwest`, `Serde`, `Io`) indicate transport or deserialization failures and don't carry a response body. Most envelopes match `{ "errors": ["..."] }` (an array of strings) but a few endpoints return `{ "errors": [{"code": ..., "title": ..., "meta": {...}}] }` (an array of structured error objects — used by `POST /apps/{app_id}/users` 409 conflict, see `CreateUserConflictResponse`), `{ "errors": "..." }` (string), or `{ "success": false }` (no `errors` field at all). Robust error-handling code should tolerate all four shapes.
+When a request fails, the future resolves to `Err(onesignal_rust_api::apis::Error<...>)`. Pattern-match on the `Error::ResponseError(content)` variant to access `content.status` (`reqwest::StatusCode`, the HTTP status code) and `content.content` (`String`, the raw JSON envelope). Other `Error` variants (`Reqwest`, `Serde`, `Io`) indicate transport or deserialization failures and don't carry a response body. Most envelopes match `{ "errors": ["..."] }` (an array of strings) but a few endpoints return `{ "errors": [{"code": ..., "title": ..., "meta": {...}}] }` (an array of structured error objects — used by `POST /apps/{app_id}/users` 409 conflict, see `CreateUserConflictResponse`), `{ "errors": "..." }` (string), or `{ "success": false }` (no `errors` field at all). Robust error-handling code should tolerate all four shapes. The `e.error_messages()` method does this for you, normalizing every shape to a flat `Vec<String>` (empty for non-response errors or a body with no `errors`).
 
 ### Polymorphic 200 from POST /notifications
 
@@ -105,9 +112,10 @@ async fn main() {
 
     match default_api::cancel_notification(&configuration, app_id, notification_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("cancel_notification failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("cancel_notification failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("cancel_notification failed: {:?}", e),
     }
@@ -167,9 +175,10 @@ async fn main() {
 
     match default_api::copy_template_to_app(&configuration, template_id, app_id, copy_template_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("copy_template_to_app failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("copy_template_to_app failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("copy_template_to_app failed: {:?}", e),
     }
@@ -231,9 +240,10 @@ async fn main() {
 
     match default_api::create_alias(&configuration, app_id, alias_label, alias_id, user_identity_body).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_alias failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_alias failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_alias failed: {:?}", e),
     }
@@ -295,9 +305,10 @@ async fn main() {
 
     match default_api::create_alias_by_subscription(&configuration, app_id, subscription_id, user_identity_body).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_alias_by_subscription failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_alias_by_subscription failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_alias_by_subscription failed: {:?}", e),
     }
@@ -357,9 +368,10 @@ async fn main() {
 
     match default_api::create_api_key(&configuration, app_id, create_api_key_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_api_key failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_api_key failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_api_key failed: {:?}", e),
     }
@@ -417,9 +429,10 @@ async fn main() {
 
     match default_api::create_app(&configuration, app).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_app failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_app failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_app failed: {:?}", e),
     }
@@ -477,9 +490,10 @@ async fn main() {
 
     match default_api::create_custom_events(&configuration, app_id, custom_events_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_custom_events failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_custom_events failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_custom_events failed: {:?}", e),
     }
@@ -577,6 +591,50 @@ async fn main() {
 }
 ```
 
+#### Using `helpers::create_notification_with_retry` (preferred for safe, idempotent retries)
+
+The `create_notification_with_retry` helper mirrors `create_notification` but generates the `idempotency_key` for you, transparently retries transient failures (HTTP 429 / 503 / connect/timeout errors) with the **same** key, and reports via `was_replayed` whether the server answered from a previously-completed request.
+
+```rust
+use onesignal_rust_api::apis::configuration::Configuration;
+use onesignal_rust_api::helpers;
+use onesignal_rust_api::models::notification::TargetChannelType;
+use onesignal_rust_api::models::{LanguageStringMap, Notification};
+
+#[tokio::main]
+async fn main() {
+    let mut configuration = Configuration::new();
+    configuration.rest_api_key_token = Some("YOUR_REST_API_KEY".to_string());
+
+    let mut notification = Notification::new("YOUR_APP_ID".to_string());
+    notification.contents = Some(Box::new(LanguageStringMap {
+        en: Some("Hello from OneSignal!".to_string()),
+        ..Default::default()
+    }));
+    let mut aliases = std::collections::HashMap::new();
+    aliases.insert(
+        "external_id".to_string(),
+        vec!["YOUR_USER_EXTERNAL_ID".to_string()],
+    );
+    notification.include_aliases = Some(aliases);
+    notification.target_channel = Some(TargetChannelType::Push);
+    // No idempotency_key set: the helper generates a UUIDv4 and reuses it across retries.
+
+    // Pass None for default retry options (3 retries, 1s backoff base), or
+    // Some(CreateNotificationWithRetryOptions { .. }) to override.
+    match helpers::create_notification_with_retry(&configuration, &mut notification, None).await {
+        Ok(result) => {
+            if result.was_replayed {
+                println!("Server replayed a prior send (no duplicate): {:?}", result.response.id);
+            } else {
+                println!("Notification created: {:?}", result.response.id);
+            }
+        }
+        Err(e) => eprintln!("create_notification_with_retry failed: {:?}", e),
+    }
+}
+```
+
 ### Parameters
 
 
@@ -628,9 +686,10 @@ async fn main() {
 
     match default_api::create_segment(&configuration, app_id, segment).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_segment failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_segment failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_segment failed: {:?}", e),
     }
@@ -691,9 +750,10 @@ async fn main() {
 
     match default_api::create_subscription(&configuration, app_id, alias_label, alias_id, subscription_body).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_subscription failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_subscription failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_subscription failed: {:?}", e),
     }
@@ -753,9 +813,10 @@ async fn main() {
 
     match default_api::create_template(&configuration, create_template_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_template failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_template failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_template failed: {:?}", e),
     }
@@ -813,9 +874,10 @@ async fn main() {
 
     match default_api::create_user(&configuration, app_id, user).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("create_user failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("create_user failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("create_user failed: {:?}", e),
     }
@@ -874,9 +936,10 @@ async fn main() {
 
     match default_api::delete_alias(&configuration, app_id, alias_label, alias_id, alias_label_to_delete).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("delete_alias failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("delete_alias failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("delete_alias failed: {:?}", e),
     }
@@ -935,9 +998,10 @@ async fn main() {
 
     match default_api::delete_api_key(&configuration, app_id, token_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("delete_api_key failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("delete_api_key failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("delete_api_key failed: {:?}", e),
     }
@@ -994,9 +1058,10 @@ async fn main() {
 
     match default_api::delete_segment(&configuration, app_id, segment_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("delete_segment failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("delete_segment failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("delete_segment failed: {:?}", e),
     }
@@ -1053,9 +1118,10 @@ async fn main() {
 
     match default_api::delete_subscription(&configuration, app_id, subscription_id).await {
         Ok(_) => println!("delete_subscription succeeded"),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("delete_subscription failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("delete_subscription failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("delete_subscription failed: {:?}", e),
     }
@@ -1112,9 +1178,10 @@ async fn main() {
 
     match default_api::delete_template(&configuration, template_id, app_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("delete_template failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("delete_template failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("delete_template failed: {:?}", e),
     }
@@ -1172,9 +1239,10 @@ async fn main() {
 
     match default_api::delete_user(&configuration, app_id, alias_label, alias_id).await {
         Ok(_) => println!("delete_user succeeded"),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("delete_user failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("delete_user failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("delete_user failed: {:?}", e),
     }
@@ -1232,9 +1300,10 @@ async fn main() {
 
     match default_api::export_events(&configuration, notification_id, app_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("export_events failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("export_events failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("export_events failed: {:?}", e),
     }
@@ -1293,9 +1362,10 @@ async fn main() {
 
     match default_api::export_subscriptions(&configuration, app_id, export_subscriptions_request_body).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("export_subscriptions failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("export_subscriptions failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("export_subscriptions failed: {:?}", e),
     }
@@ -1353,9 +1423,10 @@ async fn main() {
 
     match default_api::get_aliases(&configuration, app_id, alias_label, alias_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_aliases failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_aliases failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_aliases failed: {:?}", e),
     }
@@ -1413,9 +1484,10 @@ async fn main() {
 
     match default_api::get_aliases_by_subscription(&configuration, app_id, subscription_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_aliases_by_subscription failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_aliases_by_subscription failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_aliases_by_subscription failed: {:?}", e),
     }
@@ -1471,9 +1543,10 @@ async fn main() {
 
     match default_api::get_app(&configuration, app_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_app failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_app failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_app failed: {:?}", e),
     }
@@ -1525,9 +1598,10 @@ async fn main() {
 
     match default_api::get_apps(&configuration).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_apps failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_apps failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_apps failed: {:?}", e),
     }
@@ -1580,9 +1654,10 @@ async fn main() {
 
     match default_api::get_notification(&configuration, app_id, notification_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_notification failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_notification failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_notification failed: {:?}", e),
     }
@@ -1641,9 +1716,10 @@ async fn main() {
 
     match default_api::get_notification_history(&configuration, notification_id, get_notification_history_request_body).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_notification_history failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_notification_history failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_notification_history failed: {:?}", e),
     }
@@ -1702,9 +1778,10 @@ async fn main() {
 
     match default_api::get_notifications(&configuration, app_id, limit, offset, kind).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_notifications failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_notifications failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_notifications failed: {:?}", e),
     }
@@ -1767,9 +1844,10 @@ async fn main() {
 
     match default_api::get_outcomes(&configuration, app_id, outcome_names, outcome_names2, outcome_time_range, outcome_platforms, outcome_attribution).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_outcomes failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_outcomes failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_outcomes failed: {:?}", e),
     }
@@ -1831,9 +1909,10 @@ async fn main() {
 
     match default_api::get_segments(&configuration, app_id, offset, limit).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_segments failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_segments failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_segments failed: {:?}", e),
     }
@@ -1892,9 +1971,10 @@ async fn main() {
 
     match default_api::get_user(&configuration, app_id, alias_label, alias_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("get_user failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("get_user failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("get_user failed: {:?}", e),
     }
@@ -1952,9 +2032,10 @@ async fn main() {
 
     match default_api::rotate_api_key(&configuration, app_id, token_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("rotate_api_key failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("rotate_api_key failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("rotate_api_key failed: {:?}", e),
     }
@@ -2014,9 +2095,10 @@ async fn main() {
 
     match default_api::start_live_activity(&configuration, app_id, activity_type, start_live_activity_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("start_live_activity failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("start_live_activity failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("start_live_activity failed: {:?}", e),
     }
@@ -2077,9 +2159,10 @@ async fn main() {
 
     match default_api::transfer_subscription(&configuration, app_id, subscription_id, transfer_subscription_request_body).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("transfer_subscription failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("transfer_subscription failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("transfer_subscription failed: {:?}", e),
     }
@@ -2138,9 +2221,10 @@ async fn main() {
 
     match default_api::unsubscribe_email_with_token(&configuration, app_id, notification_id, token).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("unsubscribe_email_with_token failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("unsubscribe_email_with_token failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("unsubscribe_email_with_token failed: {:?}", e),
     }
@@ -2201,9 +2285,10 @@ async fn main() {
 
     match default_api::update_api_key(&configuration, app_id, token_id, update_api_key_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("update_api_key failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("update_api_key failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("update_api_key failed: {:?}", e),
     }
@@ -2263,9 +2348,10 @@ async fn main() {
 
     match default_api::update_app(&configuration, app_id, app).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("update_app failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("update_app failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("update_app failed: {:?}", e),
     }
@@ -2325,9 +2411,10 @@ async fn main() {
 
     match default_api::update_live_activity(&configuration, app_id, activity_id, update_live_activity_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("update_live_activity failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("update_live_activity failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("update_live_activity failed: {:?}", e),
     }
@@ -2388,9 +2475,10 @@ async fn main() {
 
     match default_api::update_subscription(&configuration, app_id, subscription_id, subscription_body).await {
         Ok(_) => println!("update_subscription succeeded"),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("update_subscription failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("update_subscription failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("update_subscription failed: {:?}", e),
     }
@@ -2452,9 +2540,10 @@ async fn main() {
 
     match default_api::update_subscription_by_token(&configuration, app_id, token_type, token, subscription_body).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("update_subscription_by_token failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("update_subscription_by_token failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("update_subscription_by_token failed: {:?}", e),
     }
@@ -2516,9 +2605,10 @@ async fn main() {
 
     match default_api::update_template(&configuration, template_id, app_id, update_template_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("update_template failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("update_template failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("update_template failed: {:?}", e),
     }
@@ -2580,9 +2670,10 @@ async fn main() {
 
     match default_api::update_user(&configuration, app_id, alias_label, alias_id, update_user_request).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("update_user failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("update_user failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("update_user failed: {:?}", e),
     }
@@ -2640,9 +2731,10 @@ async fn main() {
 
     match default_api::view_api_keys(&configuration, app_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("view_api_keys failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("view_api_keys failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("view_api_keys failed: {:?}", e),
     }
@@ -2698,9 +2790,10 @@ async fn main() {
 
     match default_api::view_template(&configuration, template_id, app_id).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("view_template failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("view_template failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("view_template failed: {:?}", e),
     }
@@ -2759,9 +2852,10 @@ async fn main() {
 
     match default_api::view_templates(&configuration, app_id, limit, offset, channel).await {
         Ok(resp) => println!("{:?}", resp),
-        Err(onesignal_rust_api::apis::Error::ResponseError(content)) => {
-            eprintln!("view_templates failed: HTTP {}", content.status);
-            eprintln!("Response Body: {}", content.content);
+        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
+            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
+            // the raw response remains on the ResponseError variant.
+            eprintln!("view_templates failed: {:?}", e.error_messages());
         }
         Err(e) => eprintln!("view_templates failed: {:?}", e),
     }
diff --git a/src/apis/configuration.rs b/src/apis/configuration.rs
index da25338..73477cb 100644
--- a/src/apis/configuration.rs
+++ b/src/apis/configuration.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
@@ -45,7 +45,7 @@ impl Default for Configuration {
     fn default() -> Self {
         Configuration {
             base_path: "https://api.onesignal.com".to_owned(),
-            user_agent: Some("OpenAPI-Generator/5.6.0/rust".to_owned()),
+            user_agent: Some("OpenAPI-Generator/5.7.0/rust".to_owned()),
             client: reqwest::Client::new(),
             basic_auth: None,
             oauth_access_token: None,
diff --git a/src/apis/default_api.rs b/src/apis/default_api.rs
index b841cdb..7f8db5a 100644
--- a/src/apis/default_api.rs
+++ b/src/apis/default_api.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
@@ -446,7 +446,7 @@ pub async fn cancel_notification(configuration: &configuration::Configuration, a
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -482,7 +482,7 @@ pub async fn copy_template_to_app(configuration: &configuration::Configuration,
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -518,7 +518,7 @@ pub async fn create_alias(configuration: &configuration::Configuration, app_id:
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -554,7 +554,7 @@ pub async fn create_alias_by_subscription(configuration: &configuration::Configu
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -590,7 +590,7 @@ pub async fn create_api_key(configuration: &configuration::Configuration, app_id
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -626,7 +626,7 @@ pub async fn create_app(configuration: &configuration::Configuration, app: crate
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -662,7 +662,7 @@ pub async fn create_custom_events(configuration: &configuration::Configuration,
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -698,7 +698,7 @@ pub async fn create_notification(configuration: &configuration::Configuration, n
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -734,7 +734,7 @@ pub async fn create_segment(configuration: &configuration::Configuration, app_id
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -770,7 +770,7 @@ pub async fn create_subscription(configuration: &configuration::Configuration, a
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -806,7 +806,7 @@ pub async fn create_template(configuration: &configuration::Configuration, creat
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -842,7 +842,7 @@ pub async fn create_user(configuration: &configuration::Configuration, app_id: &
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -878,7 +878,7 @@ pub async fn delete_alias(configuration: &configuration::Configuration, app_id:
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -913,7 +913,7 @@ pub async fn delete_api_key(configuration: &configuration::Configuration, app_id
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -948,7 +948,7 @@ pub async fn delete_segment(configuration: &configuration::Configuration, app_id
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -983,7 +983,7 @@ pub async fn delete_subscription(configuration: &configuration::Configuration, a
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1019,7 +1019,7 @@ pub async fn delete_template(configuration: &configuration::Configuration, templ
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1054,7 +1054,7 @@ pub async fn delete_user(configuration: &configuration::Configuration, app_id: &
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1090,7 +1090,7 @@ pub async fn export_events(configuration: &configuration::Configuration, notific
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1125,7 +1125,7 @@ pub async fn export_subscriptions(configuration: &configuration::Configuration,
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1161,7 +1161,7 @@ pub async fn get_aliases(configuration: &configuration::Configuration, app_id: &
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1196,7 +1196,7 @@ pub async fn get_aliases_by_subscription(configuration: &configuration::Configur
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1231,7 +1231,7 @@ pub async fn get_app(configuration: &configuration::Configuration, app_id: &str)
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1266,7 +1266,7 @@ pub async fn get_apps(configuration: &configuration::Configuration, ) -> Result<
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1302,7 +1302,7 @@ pub async fn get_notification(configuration: &configuration::Configuration, app_
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1337,7 +1337,7 @@ pub async fn get_notification_history(configuration: &configuration::Configurati
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1383,7 +1383,7 @@ pub async fn get_notifications(configuration: &configuration::Configuration, app
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1431,7 +1431,7 @@ pub async fn get_outcomes(configuration: &configuration::Configuration, app_id:
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1472,7 +1472,7 @@ pub async fn get_segments(configuration: &configuration::Configuration, app_id:
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1507,7 +1507,7 @@ pub async fn get_user(configuration: &configuration::Configuration, app_id: &str
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1542,7 +1542,7 @@ pub async fn rotate_api_key(configuration: &configuration::Configuration, app_id
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1577,7 +1577,7 @@ pub async fn start_live_activity(configuration: &configuration::Configuration, a
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1613,7 +1613,7 @@ pub async fn transfer_subscription(configuration: &configuration::Configuration,
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1650,7 +1650,7 @@ pub async fn unsubscribe_email_with_token(configuration: &configuration::Configu
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1685,7 +1685,7 @@ pub async fn update_api_key(configuration: &configuration::Configuration, app_id
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1721,7 +1721,7 @@ pub async fn update_app(configuration: &configuration::Configuration, app_id: &s
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1757,7 +1757,7 @@ pub async fn update_live_activity(configuration: &configuration::Configuration,
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1793,7 +1793,7 @@ pub async fn update_subscription(configuration: &configuration::Configuration, a
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1829,7 +1829,7 @@ pub async fn update_subscription_by_token(configuration: &configuration::Configu
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1866,7 +1866,7 @@ pub async fn update_template(configuration: &configuration::Configuration, templ
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1902,7 +1902,7 @@ pub async fn update_user(configuration: &configuration::Configuration, app_id: &
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1938,7 +1938,7 @@ pub async fn view_api_keys(configuration: &configuration::Configuration, app_id:
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.organization_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -1974,7 +1974,7 @@ pub async fn view_template(configuration: &configuration::Configuration, templat
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
@@ -2019,7 +2019,7 @@ pub async fn view_templates(configuration: &configuration::Configuration, app_id
     }
 
     // Adds a telemetry header
-    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.6.0");
+    req_builder = req_builder.header("OS-Usage-Data", "kind=sdk, sdk-name=onesignal-rust, version=5.7.0");
 
     if let Some(ref token) = configuration.rest_api_key_token {
         req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
diff --git a/src/apis/mod.rs b/src/apis/mod.rs
index 7bb75bd..e87ed69 100644
--- a/src/apis/mod.rs
+++ b/src/apis/mod.rs
@@ -16,6 +16,63 @@ pub enum Error<T> {
     ResponseError(ResponseContent<T>),
 }
 
+impl <T> Error<T> {
+    /// The error messages carried by the response body, normalized to a flat
+    /// `Vec<String>` regardless of which envelope shape the API returned
+    /// (`{"errors": "..."}`, `{"errors": ["..."]}`,
+    /// `{"errors": [{"code": ..., "title": ...}]}`, or an object map such as
+    /// `{"errors": {"invalid_aliases": {...}}}`, surfaced as `"<key>: <value>"`
+    /// entries). Returns an empty `Vec` for non-response errors (network, serde,
+    /// IO) or when the body is not a recognizable error envelope. The raw
+    /// response remains available on the `ResponseError` variant.
+    pub fn error_messages(&self) -> Vec<String> {
+        let content = match self {
+            Error::ResponseError(response) => &response.content,
+            _ => return Vec::new(),
+        };
+
+        let parsed: serde_json::Value = match serde_json::from_str(content) {
+            Ok(value) => value,
+            Err(_) => return Vec::new(),
+        };
+
+        match parsed.get("errors") {
+            Some(serde_json::Value::String(message)) => vec![message.clone()],
+            Some(serde_json::Value::Array(items)) => items
+                .iter()
+                .filter_map(|item| match item {
+                    serde_json::Value::String(message) => Some(message.clone()),
+                    serde_json::Value::Object(object) => object
+                        .get("title")
+                        .filter(|value| !value.is_null() && value.as_str() != Some(""))
+                        .or_else(|| object.get("code"))
+                        .and_then(|value| match value {
+                            serde_json::Value::String(message) => Some(message.clone()),
+                            serde_json::Value::Null => None,
+                            other => Some(other.to_string()),
+                        }),
+                    _ => None,
+                })
+                .collect(),
+            Some(serde_json::Value::Object(map)) => {
+                // Object-shaped envelopes (e.g. {"invalid_aliases": {...}}) carry
+                // data under arbitrary keys; surface each so it isn't silently
+                // dropped. Key order is unspecified, so sort for deterministic output.
+                let mut messages: Vec<String> = map
+                    .iter()
+                    .map(|(key, value)| match value {
+                        serde_json::Value::String(message) => format!("{}: {}", key, message),
+                        other => format!("{}: {}", key, other),
+                    })
+                    .collect();
+                messages.sort();
+                messages
+            }
+            _ => Vec::new(),
+        }
+    }
+}
+
 impl <T> fmt::Display for Error<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let (module, e) = match self {
diff --git a/src/errors.rs b/src/errors.rs
new file mode 100644
index 0000000..4d32d57
--- /dev/null
+++ b/src/errors.rs
@@ -0,0 +1,20 @@
+// Generated from inputs/api/error-catalog.json. Do not edit by hand.
+//
+// Sentinel error message strings the OneSignal API can return. Each
+// constant equals the literal message the server emits, so you can test
+// membership against Error::error_messages() (e.g. NO_TARGETING_SPECIFIED).
+//
+// Note: 200-status sentinels such as NO_SUBSCRIBERS arrive on a successful
+// response, not via the exception accessor — read the response's errors
+// field for those.
+
+/// HTTP 403 | retryable: no | emitted by: any API-key-authenticated endpoint (REST or Organization key) | note: Generic auth-failure message the public api.onesignal.com edge returns for any invalid or mismatched key — REST or Organization — so a single sentinel covers both. Supersedes the Rails-monolith INVALID_REST_API_KEY / INVALID_USER_AUTH_KEY strings, which the public host no longer returns verbatim. Note the double space after 'denied.'
+pub const INVALID_API_KEY: &str = "Access denied.  Please include an 'Authorization: ...' header with a valid API key (https://documentation.onesignal.com/docs/en/keys-and-ids#api-keys).";
+/// HTTP 400, 404 | retryable: no | emitted by: POST /notifications/{id}/history, POST /notifications/{id}/messages, GET /notifications/{id} (export) | note: Verified live 2026-06-16: GET /notifications/{bogus-uuid} returns 404 with this exact message.
+pub const NOTIFICATION_NOT_FOUND: &str = "Notification not found";
+/// HTTP 200 | retryable: no | emitted by: POST /notifications | note: Returned with HTTP 200 OK (id is empty), not an error status. The flagship case for the errorMessages accessor — lets callers distinguish a sent notification from a no-op without parsing the polymorphic 200 body.
+pub const NO_SUBSCRIBERS: &str = "All included players are not subscribed";
+/// HTTP 400 | retryable: no | emitted by: POST /notifications | note: Verified live 2026-06-16: a no-targeting POST /notifications returns 400 with this exact message.
+pub const NO_TARGETING_SPECIFIED: &str = "You must include which players, segments, or tags you wish to send this notification to.";
+/// HTTP 503 | retryable: yes | emitted by: any endpoint (pgbouncer rejection) | note: Transient DB/pgbouncer failure — the canonical retryable sentinel.
+pub const SERVICE_UNAVAILABLE: &str = "Service temporarily unavailable";
diff --git a/src/helpers.rs b/src/helpers.rs
new file mode 100644
index 0000000..303c7bb
--- /dev/null
+++ b/src/helpers.rs
@@ -0,0 +1,178 @@
+//! Helpers for common OneSignal API usage patterns.
+
+use std::time::Duration;
+
+use crate::apis::configuration;
+use crate::apis::default_api::CreateNotificationError;
+use crate::apis::{Error, ResponseContent};
+use crate::models;
+
+const RETRYABLE_STATUSES: [u16; 2] = [429, 503];
+const MIN_BASE_DELAY: Duration = Duration::from_secs(1);
+const MAX_BASE_DELAY: Duration = Duration::from_secs(60);
+
+/// Options for [`create_notification_with_retry`].
+#[derive(Debug, Clone)]
+pub struct CreateNotificationWithRetryOptions {
+    /// Retries after the initial attempt. Default 3.
+    pub max_retries: u32,
+    /// Backoff base used when the response carries no `Retry-After` header.
+    /// Clamped to [1s, 60s]. Default 1s.
+    pub base_delay: Duration,
+}
+
+impl Default for CreateNotificationWithRetryOptions {
+    fn default() -> Self {
+        Self {
+            max_retries: 3,
+            base_delay: Duration::from_secs(1),
+        }
+    }
+}
+
+/// Result of [`create_notification_with_retry`]: the create response plus
+/// whether the server replayed a previously completed request
+/// (`Idempotent-Replayed` response header).
+#[derive(Debug, Clone)]
+pub struct CreateNotificationWithRetryResult {
+    pub response: models::CreateNotificationSuccessResponse,
+    pub was_replayed: bool,
+}
+
+enum AttemptOutcome {
+    Fatal(Error<CreateNotificationError>),
+    Retryable(Error<CreateNotificationError>, Option<Duration>),
+}
+
+/// Create a notification with safe, idempotent retries.
+///
+/// Ensures `notification.idempotency_key` is set (generating a UUIDv4 when
+/// absent) so the server can deduplicate, then posts to `/notifications`.
+/// Transient failures (HTTP 429, HTTP 503, or connect/timeout errors) are
+/// retried with the SAME idempotency key, honoring the `Retry-After` response
+/// header when present and falling back to exponential backoff
+/// (`base_delay * 2^attempt`) otherwise. Other errors are returned
+/// immediately. An existing idempotency key is respected, never overwritten.
+///
+/// NOTE: the request logic below mirrors `apis::default_api::create_notification`
+/// (which does not expose response headers); keep the two in sync when the
+/// generated operation changes.
+pub async fn create_notification_with_retry(
+    configuration: &configuration::Configuration,
+    notification: &mut models::Notification,
+    options: Option<CreateNotificationWithRetryOptions>,
+) -> Result<CreateNotificationWithRetryResult, Error<CreateNotificationError>> {
+    let opts = options.unwrap_or_default();
+    // Clamp the backoff base so a stray value can neither hammer the API (too
+    // small) nor stall the caller for an unbounded stretch (too large).
+    let base_delay = opts.base_delay.clamp(MIN_BASE_DELAY, MAX_BASE_DELAY);
+
+    if notification
+        .idempotency_key
+        .as_deref()
+        .map_or(true, |key| key.is_empty())
+    {
+        notification.idempotency_key = Some(uuid::Uuid::new_v4().to_string());
+    }
+
+    let mut attempt: u32 = 0;
+    loop {
+        match send_once(configuration, notification).await {
+            Ok(result) => return Ok(result),
+            Err(AttemptOutcome::Fatal(error)) => return Err(error),
+            Err(AttemptOutcome::Retryable(error, retry_after)) => {
+                if attempt >= opts.max_retries {
+                    return Err(error);
+                }
+                let delay =
+                    retry_after.unwrap_or_else(|| base_delay * 2u32.saturating_pow(attempt));
+                if !delay.is_zero() {
+                    tokio::time::sleep(delay).await;
+                }
+                attempt += 1;
+            }
+        }
+    }
+}
+
+async fn send_once(
+    configuration: &configuration::Configuration,
+    notification: &models::Notification,
+) -> Result<CreateNotificationWithRetryResult, AttemptOutcome> {
+    let client = &configuration.client;
+
+    let uri_str = format!("{}/notifications", configuration.base_path);
+    let mut req_builder = client.request(reqwest::Method::POST, uri_str.as_str());
+
+    if let Some(ref user_agent) = configuration.user_agent {
+        req_builder = req_builder.header(reqwest::header::USER_AGENT, user_agent.clone());
+    }
+
+    // Adds a telemetry header
+    req_builder = req_builder.header(
+        "OS-Usage-Data",
+        concat!(
+            "kind=sdk, sdk-name=onesignal-rust, version=",
+            env!("CARGO_PKG_VERSION")
+        ),
+    );
+
+    if let Some(ref token) = configuration.rest_api_key_token {
+        req_builder = req_builder.header("Authorization", format!("Key {}", token.to_owned()));
+    }
+    req_builder = req_builder.json(notification);
+
+    let req = req_builder
+        .build()
+        .map_err(|e| AttemptOutcome::Fatal(Error::Reqwest(e)))?;
+    let resp = match client.execute(req).await {
+        Ok(resp) => resp,
+        Err(e) => {
+            return Err(if e.is_timeout() || e.is_connect() {
+                AttemptOutcome::Retryable(Error::Reqwest(e), None)
+            } else {
+                AttemptOutcome::Fatal(Error::Reqwest(e))
+            });
+        }
+    };
+
+    let status = resp.status();
+    let was_replayed = header_value(&resp, "idempotent-replayed")
+        .map_or(false, |value| value.trim().eq_ignore_ascii_case("true"));
+    let retry_after = header_value(&resp, "retry-after")
+        .and_then(|value| value.trim().parse::<u64>().ok())
+        .map(Duration::from_secs);
+
+    let content = resp
+        .text()
+        .await
+        .map_err(|e| AttemptOutcome::Fatal(Error::Reqwest(e)))?;
+
+    if !status.is_client_error() && !status.is_server_error() {
+        let response = serde_json::from_str(&content)
+            .map_err(|e| AttemptOutcome::Fatal(Error::Serde(e)))?;
+        Ok(CreateNotificationWithRetryResult {
+            response,
+            was_replayed,
+        })
+    } else {
+        let entity: Option<CreateNotificationError> = serde_json::from_str(&content).ok();
+        let error = Error::ResponseError(ResponseContent {
+            status,
+            content,
+            entity,
+        });
+        Err(if RETRYABLE_STATUSES.contains(&status.as_u16()) {
+            AttemptOutcome::Retryable(error, retry_after)
+        } else {
+            AttemptOutcome::Fatal(error)
+        })
+    }
+}
+
+fn header_value(resp: &reqwest::Response, name: &str) -> Option<String> {
+    resp.headers()
+        .get(name)
+        .and_then(|value| value.to_str().ok())
+        .map(|value| value.to_owned())
+}
diff --git a/src/lib.rs b/src/lib.rs
index c1dd666..e4c6fd5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -7,4 +7,6 @@ extern crate url;
 extern crate reqwest;
 
 pub mod apis;
+pub mod helpers;
 pub mod models;
+pub mod errors;
diff --git a/src/models/api_key_token.rs b/src/models/api_key_token.rs
index add5132..15178bc 100644
--- a/src/models/api_key_token.rs
+++ b/src/models/api_key_token.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/api_key_tokens_list_response.rs b/src/models/api_key_tokens_list_response.rs
index fe5c6be..b4d67ad 100644
--- a/src/models/api_key_tokens_list_response.rs
+++ b/src/models/api_key_tokens_list_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/app.rs b/src/models/app.rs
index e859861..75a5611 100644
--- a/src/models/app.rs
+++ b/src/models/app.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/basic_notification.rs b/src/models/basic_notification.rs
index 2e7b86d..0a4490f 100644
--- a/src/models/basic_notification.rs
+++ b/src/models/basic_notification.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/basic_notification_all_of.rs b/src/models/basic_notification_all_of.rs
index 494c96a..888dbd9 100644
--- a/src/models/basic_notification_all_of.rs
+++ b/src/models/basic_notification_all_of.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/basic_notification_all_of_android_background_layout.rs b/src/models/basic_notification_all_of_android_background_layout.rs
index 2280233..19180f0 100644
--- a/src/models/basic_notification_all_of_android_background_layout.rs
+++ b/src/models/basic_notification_all_of_android_background_layout.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/button.rs b/src/models/button.rs
index 9ff0dfb..462bffd 100644
--- a/src/models/button.rs
+++ b/src/models/button.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/copy_template_request.rs b/src/models/copy_template_request.rs
index 3d774ec..882b929 100644
--- a/src/models/copy_template_request.rs
+++ b/src/models/copy_template_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_api_key_request.rs b/src/models/create_api_key_request.rs
index 94feb0a..6037d5e 100644
--- a/src/models/create_api_key_request.rs
+++ b/src/models/create_api_key_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_api_key_response.rs b/src/models/create_api_key_response.rs
index 9042d84..af71b03 100644
--- a/src/models/create_api_key_response.rs
+++ b/src/models/create_api_key_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_notification_success_response.rs b/src/models/create_notification_success_response.rs
index 3ae568f..5873529 100644
--- a/src/models/create_notification_success_response.rs
+++ b/src/models/create_notification_success_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_segment_conflict_response.rs b/src/models/create_segment_conflict_response.rs
index 9432e95..1caa7c9 100644
--- a/src/models/create_segment_conflict_response.rs
+++ b/src/models/create_segment_conflict_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_segment_success_response.rs b/src/models/create_segment_success_response.rs
index 185f65c..5dfaded 100644
--- a/src/models/create_segment_success_response.rs
+++ b/src/models/create_segment_success_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_template_request.rs b/src/models/create_template_request.rs
index b21273f..85d8e17 100644
--- a/src/models/create_template_request.rs
+++ b/src/models/create_template_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_user_conflict_response.rs b/src/models/create_user_conflict_response.rs
index 8770d5c..6b638ea 100644
--- a/src/models/create_user_conflict_response.rs
+++ b/src/models/create_user_conflict_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_user_conflict_response_errors_inner.rs b/src/models/create_user_conflict_response_errors_inner.rs
index faee0fc..0c39dae 100644
--- a/src/models/create_user_conflict_response_errors_inner.rs
+++ b/src/models/create_user_conflict_response_errors_inner.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/create_user_conflict_response_errors_items_meta.rs b/src/models/create_user_conflict_response_errors_items_meta.rs
index 3405b8c..545300b 100644
--- a/src/models/create_user_conflict_response_errors_items_meta.rs
+++ b/src/models/create_user_conflict_response_errors_items_meta.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/custom_event.rs b/src/models/custom_event.rs
index d9e09a8..13ad2e6 100644
--- a/src/models/custom_event.rs
+++ b/src/models/custom_event.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/custom_events_request.rs b/src/models/custom_events_request.rs
index c485e58..c90e018 100644
--- a/src/models/custom_events_request.rs
+++ b/src/models/custom_events_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/delivery_data.rs b/src/models/delivery_data.rs
index 8b925d9..897e3d5 100644
--- a/src/models/delivery_data.rs
+++ b/src/models/delivery_data.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/export_events_success_response.rs b/src/models/export_events_success_response.rs
index 3ff46a7..e4d8df6 100644
--- a/src/models/export_events_success_response.rs
+++ b/src/models/export_events_success_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/export_subscriptions_request_body.rs b/src/models/export_subscriptions_request_body.rs
index 258f337..94addf3 100644
--- a/src/models/export_subscriptions_request_body.rs
+++ b/src/models/export_subscriptions_request_body.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/export_subscriptions_success_response.rs b/src/models/export_subscriptions_success_response.rs
index a718aad..04c39cc 100644
--- a/src/models/export_subscriptions_success_response.rs
+++ b/src/models/export_subscriptions_success_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/filter.rs b/src/models/filter.rs
index 2f6e258..8e79be7 100644
--- a/src/models/filter.rs
+++ b/src/models/filter.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/filter_expression.rs b/src/models/filter_expression.rs
index 6fb1cf5..c903b09 100644
--- a/src/models/filter_expression.rs
+++ b/src/models/filter_expression.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/generic_error.rs b/src/models/generic_error.rs
index 37a06b6..566c969 100644
--- a/src/models/generic_error.rs
+++ b/src/models/generic_error.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/generic_success_bool_response.rs b/src/models/generic_success_bool_response.rs
index 2b34025..72235cf 100644
--- a/src/models/generic_success_bool_response.rs
+++ b/src/models/generic_success_bool_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/get_notification_history_request_body.rs b/src/models/get_notification_history_request_body.rs
index 3068080..b442787 100644
--- a/src/models/get_notification_history_request_body.rs
+++ b/src/models/get_notification_history_request_body.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/get_segments_success_response.rs b/src/models/get_segments_success_response.rs
index 1f12fe4..8d9c995 100644
--- a/src/models/get_segments_success_response.rs
+++ b/src/models/get_segments_success_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/language_string_map.rs b/src/models/language_string_map.rs
index dcb4efc..b111235 100644
--- a/src/models/language_string_map.rs
+++ b/src/models/language_string_map.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/notification.rs b/src/models/notification.rs
index 841a587..5f54134 100644
--- a/src/models/notification.rs
+++ b/src/models/notification.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/notification_all_of.rs b/src/models/notification_all_of.rs
index dde9069..0b775ba 100644
--- a/src/models/notification_all_of.rs
+++ b/src/models/notification_all_of.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/notification_history_success_response.rs b/src/models/notification_history_success_response.rs
index d590673..bab1d44 100644
--- a/src/models/notification_history_success_response.rs
+++ b/src/models/notification_history_success_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/notification_slice.rs b/src/models/notification_slice.rs
index f999e0b..45516f7 100644
--- a/src/models/notification_slice.rs
+++ b/src/models/notification_slice.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/notification_target.rs b/src/models/notification_target.rs
index bbe385c..7e3f191 100644
--- a/src/models/notification_target.rs
+++ b/src/models/notification_target.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/notification_with_meta.rs b/src/models/notification_with_meta.rs
index 3c4250e..30a6561 100644
--- a/src/models/notification_with_meta.rs
+++ b/src/models/notification_with_meta.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/notification_with_meta_all_of.rs b/src/models/notification_with_meta_all_of.rs
index 48c94e7..0817793 100644
--- a/src/models/notification_with_meta_all_of.rs
+++ b/src/models/notification_with_meta_all_of.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/operator.rs b/src/models/operator.rs
index 599954d..7e7fb18 100644
--- a/src/models/operator.rs
+++ b/src/models/operator.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/outcome_data.rs b/src/models/outcome_data.rs
index bd4b07a..8d71e3e 100644
--- a/src/models/outcome_data.rs
+++ b/src/models/outcome_data.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/outcomes_data.rs b/src/models/outcomes_data.rs
index 6eef920..9d87b6a 100644
--- a/src/models/outcomes_data.rs
+++ b/src/models/outcomes_data.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/platform_delivery_data.rs b/src/models/platform_delivery_data.rs
index 5a81cc5..9d08c7a 100644
--- a/src/models/platform_delivery_data.rs
+++ b/src/models/platform_delivery_data.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/platform_delivery_data_email_all_of.rs b/src/models/platform_delivery_data_email_all_of.rs
index 9ec4fd6..9c3d060 100644
--- a/src/models/platform_delivery_data_email_all_of.rs
+++ b/src/models/platform_delivery_data_email_all_of.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/platform_delivery_data_sms_all_of.rs b/src/models/platform_delivery_data_sms_all_of.rs
index 5910b63..c392598 100644
--- a/src/models/platform_delivery_data_sms_all_of.rs
+++ b/src/models/platform_delivery_data_sms_all_of.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/properties_body.rs b/src/models/properties_body.rs
index 9924310..8613200 100644
--- a/src/models/properties_body.rs
+++ b/src/models/properties_body.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/properties_deltas.rs b/src/models/properties_deltas.rs
index 3038893..d69ee44 100644
--- a/src/models/properties_deltas.rs
+++ b/src/models/properties_deltas.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/properties_object.rs b/src/models/properties_object.rs
index c008048..146046b 100644
--- a/src/models/properties_object.rs
+++ b/src/models/properties_object.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/purchase.rs b/src/models/purchase.rs
index 1657348..340227d 100644
--- a/src/models/purchase.rs
+++ b/src/models/purchase.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/rate_limit_error.rs b/src/models/rate_limit_error.rs
index 090ca8d..31b40a7 100644
--- a/src/models/rate_limit_error.rs
+++ b/src/models/rate_limit_error.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/segment.rs b/src/models/segment.rs
index b13f265..4fa80af 100644
--- a/src/models/segment.rs
+++ b/src/models/segment.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/segment_data.rs b/src/models/segment_data.rs
index 7065ebd..2db13a5 100644
--- a/src/models/segment_data.rs
+++ b/src/models/segment_data.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/segment_notification_target.rs b/src/models/segment_notification_target.rs
index 8be7ff2..273ae6f 100644
--- a/src/models/segment_notification_target.rs
+++ b/src/models/segment_notification_target.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/start_live_activity_request.rs b/src/models/start_live_activity_request.rs
index a0542b1..800b3f6 100644
--- a/src/models/start_live_activity_request.rs
+++ b/src/models/start_live_activity_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/start_live_activity_success_response.rs b/src/models/start_live_activity_success_response.rs
index 3449a2e..655db27 100644
--- a/src/models/start_live_activity_success_response.rs
+++ b/src/models/start_live_activity_success_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/subscription.rs b/src/models/subscription.rs
index 647a870..77c4d52 100644
--- a/src/models/subscription.rs
+++ b/src/models/subscription.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/subscription_body.rs b/src/models/subscription_body.rs
index f196d15..5d55595 100644
--- a/src/models/subscription_body.rs
+++ b/src/models/subscription_body.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/subscription_notification_target.rs b/src/models/subscription_notification_target.rs
index 2eaedfd..508219c 100644
--- a/src/models/subscription_notification_target.rs
+++ b/src/models/subscription_notification_target.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/template_resource.rs b/src/models/template_resource.rs
index cec23c6..13030a2 100644
--- a/src/models/template_resource.rs
+++ b/src/models/template_resource.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/templates_list_response.rs b/src/models/templates_list_response.rs
index b708bcd..70af9ba 100644
--- a/src/models/templates_list_response.rs
+++ b/src/models/templates_list_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/transfer_subscription_request_body.rs b/src/models/transfer_subscription_request_body.rs
index 4b93e1d..c947266 100644
--- a/src/models/transfer_subscription_request_body.rs
+++ b/src/models/transfer_subscription_request_body.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/update_api_key_request.rs b/src/models/update_api_key_request.rs
index 2707966..08313b8 100644
--- a/src/models/update_api_key_request.rs
+++ b/src/models/update_api_key_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/update_live_activity_request.rs b/src/models/update_live_activity_request.rs
index b266c61..6fbc310 100644
--- a/src/models/update_live_activity_request.rs
+++ b/src/models/update_live_activity_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/update_live_activity_success_response.rs b/src/models/update_live_activity_success_response.rs
index 38b5fa1..ad036e5 100644
--- a/src/models/update_live_activity_success_response.rs
+++ b/src/models/update_live_activity_success_response.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/update_template_request.rs b/src/models/update_template_request.rs
index 7aa4440..cb6f347 100644
--- a/src/models/update_template_request.rs
+++ b/src/models/update_template_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/update_user_request.rs b/src/models/update_user_request.rs
index 3526b84..c60260e 100644
--- a/src/models/update_user_request.rs
+++ b/src/models/update_user_request.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/user.rs b/src/models/user.rs
index 7a0a764..f5f758c 100644
--- a/src/models/user.rs
+++ b/src/models/user.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/user_identity_body.rs b/src/models/user_identity_body.rs
index 278fbbb..2db71c5 100644
--- a/src/models/user_identity_body.rs
+++ b/src/models/user_identity_body.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */
diff --git a/src/models/web_button.rs b/src/models/web_button.rs
index 994158a..a6dc154 100644
--- a/src/models/web_button.rs
+++ b/src/models/web_button.rs
@@ -3,7 +3,7 @@
  *
  * A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com
  *
- * The version of the OpenAPI document: 5.6.0
+ * The version of the OpenAPI document: 5.7.0
  * Contact: devrel@onesignal.com
  * Generated by: https://openapi-generator.tech
  */