errors: added ServiceUnavailableError

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/errors/api-report.md

@@ -125,6 +125,9 @@ export function serializeError(
   },
 ): SerializedError;
 
+// @public
+export class ServiceUnavailableError extends CustomErrorBase {}
+
 // @public
 export function stringifyError(error: unknown): string;
 ```

packages/errors/src/errors/common.ts

@@ -81,6 +81,13 @@ export class NotModifiedError extends CustomErrorBase {}
  */
 export class NotImplementedError extends CustomErrorBase {}
 
+/**
+ * The server is not ready to handle the request.
+ *
+ * @public
+ */
+export class ServiceUnavailableError extends CustomErrorBase {}
+
 /**
  * An error that forwards an underlying cause with additional context in the message.
  *

packages/errors/src/errors/index.ts

@@ -25,6 +25,7 @@ export {
   NotFoundError,
   NotModifiedError,
   NotImplementedError,
+  ServiceUnavailableError,
 } from './common';
 export { CustomErrorBase } from './CustomErrorBase';
 export { ResponseError } from './ResponseError';