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

one use

	github.com/gotd/td/tg (current package)
		tl_account_saved_ringtones_slices_gen.go#L57: func (s AccountSavedRingtonesClassArray) Retain(keep func(x AccountSavedRingtonesClass) bool) AccountSavedRingtonesClassArray {