dispose method
      
void
dispose()
      
     
    
Disposes of the instance, resetting its state.
Implementation
void dispose() {
  _isInitialised = false;
  isReadyCompleter = Completer();
}Disposes of the instance, resetting its state.
void dispose() {
  _isInitialised = false;
  isReadyCompleter = Completer();
}