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

one use

	github.com/gotd/td/tg (current package)
		tl_keyboard_button_slices_gen.go#L1249: func (s InputKeyboardButtonUserProfileArray) Retain(keep func(x InputKeyboardButtonUserProfile) bool) InputKeyboardButtonUserProfileArray {