onAttachedToTarget property
      
      Stream<AttachedToTargetEvent> 
      get
      onAttachedToTarget
      
    
    
Issued when attached to target because of auto-attach or attachToTarget command.
Implementation
Stream<AttachedToTargetEvent> get onAttachedToTarget => _client.onEvent
    .where((event) => event.name == 'Target.attachedToTarget')
    .map((event) => AttachedToTargetEvent.fromJson(event.parameters));