startListeningEvents method

void startListeningEvents()

Implementation

void startListeningEvents() {
  if (subscription != null) {
    appendOutput(
      'WARNING: Already listening for an event of type $listeningType',
    );
  } else {
    subscription = streamGenerator().listen((event) {
      appendOutput(eventTransformer(event));
    });
    appendOutput('INFO: Listening for $listeningType');
  }
}