instance property
      
      FilePickerProPlatform
      get
      instance
      
    
    
The default instance of FilePickerProPlatform to use.
Defaults to MethodChannelFilePickerPro.
Implementation
static FilePickerProPlatform get instance => _instance;
      
      set
      instance
      (FilePickerProPlatform instance) 
      
    
    
Platform-specific implementations should set this with their own platform-specific class that extends FilePickerProPlatform when they register themselves.
Implementation
static set instance(FilePickerProPlatform instance) {
  PlatformInterface.verifyToken(instance, _token);
  _instance = instance;
}