logger property
      
      THEOLoggerCallback?
      get
      logger
      
    
    
    
Implementation
THEOLoggerCallback? get logger {
  return _loggerCallback;
}
      
      set
      logger
      (THEOLoggerCallback? callback) 
      
    
    
    
Implementation
void set logger(THEOLoggerCallback? callback) {
  _loggerCallback = callback;
}