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

one use

	github.com/gotd/td/tg (current package)
		tl_updates_channel_difference_slices_gen.go#L233: func (s UpdatesChannelDifferenceEmptyArray) Retain(keep func(x UpdatesChannelDifferenceEmpty) bool) UpdatesChannelDifferenceEmptyArray {