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

one use

	github.com/gotd/td/tg (current package)
		tl_update_slices_gen.go#L5728: func (s UpdateLangPackTooLongArray) Retain(keep func(x UpdateLangPackTooLong) bool) UpdateLangPackTooLongArray {