github.com/gotd/td/tg.InputChatPhotoClassArray.Retain (method)

one use

	github.com/gotd/td/tg (current package)
		tl_input_chat_photo_slices_gen.go#L57: func (s InputChatPhotoClassArray) Retain(keep func(x InputChatPhotoClass) bool) InputChatPhotoClassArray {