See: Description
| Annotation Type | Description | 
|---|---|
| Callback | This object represents a callback URL that will be invoked. | 
| CallbackOperation | Describes a single API callback operation. | 
| Callbacks | This object represents an array of Callback URLs that can be invoked. | 
Example annotation:
  @POST
     @Callbacks(
        { @Callback(
            name = "testCallback",
            callbackUrlExpression="http://localhost:9080/oas3-airlines/reviews",
            operations =  @CallbackOperation(
                summary = "Get all reviews",
                method = "get",
                responses =  @APIResponse(
                    responseCode = "200",
                    description = "successful operation",
                    content =  @Content(
                        mediaType = "application/json",
                        schema =  @Schema(
                            type = SchemaType.ARRAY,
                            implementation = Review.class
                            )
                        )
                    )
                )
            )
        }
    )