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

one use

	github.com/gotd/td/tg (current package)
		tl_keyboard_button_slices_gen.go#L757: func (s KeyboardButtonSwitchInlineArray) Retain(keep func(x KeyboardButtonSwitchInline) bool) KeyboardButtonSwitchInlineArray {