ConferenceObserver constructor
      
      ConferenceObserver({ 
    
    
- dynamic onConferenceStarted(- String conferenceId,
- ConferenceError error
 
- dynamic onConferenceJoined(- String conferenceId,
- ConferenceError error
 
- dynamic onConferenceFinished(- String conferenceId
 
- dynamic onConferenceExited(- String conferenceId
 
Implementation
ConferenceObserver(
    {this.onConferenceStarted,
    this.onConferenceJoined,
    this.onConferenceFinished,
    this.onConferenceExited});