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

one use

	github.com/gotd/td/tg (current package)
		tl_updates_channel_difference_slices_gen.go#L315: func (s UpdatesChannelDifferenceTooLongArray) Retain(keep func(x UpdatesChannelDifferenceTooLong) bool) UpdatesChannelDifferenceTooLongArray {