Function filter

filter<T>(eventType, predicate, callback): (() => void)
Filter events based on a predicate function
Type Parameters
- T = ApiCallback<string>
Parameters
- eventType: string
  The event type to filter
- predicate: ((msg) => boolean)
  Function to test each event
  - - (msg): boolean
    - Parameters
      msg: T
      Returns boolean
- callback: EventCallback<T>
  Callback for events that pass the filter
Returns (() => void)
Unsubscribe function
- - (): void
  - Returns void