Function kosTopicHandler

kosTopicHandler<Response, Model, TransformedResponse>(params): ((target, _propertyKey, descriptor) => void)
Decorator for defining a Kos topic handler function within a Kos Data Model class.
Type Parameters
- Response = any
- Model extends IKosDataModel = any
- TransformedResponse = Response
Parameters
- params: IKosTopicHandlerParams<Response, Model, TransformedResponse>
  An object containing configuration parameters for the topic handler.
Returns ((target, _propertyKey, descriptor) => void)
A decorator function.
- - (target, _propertyKey, descriptor): void
  - Parameters
    - target: any
    - _propertyKey: string
    - descriptor: PropertyDescriptor
    Returns void
Example
```
class MyKosDataModel implements IKosDataModel {
  // ...

  @kosTopicHandler({
    topic: 'exampleTopic',
    condition: (payload, model) => payload.valid && model.active,
    transform: (payload) => ({ modifiedPayload: payload }),
    websocket: true,
  })
  handleExampleTopic(payload: any) {
    // Handle the received topic payload here.
  }
}
```