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

one use

	github.com/gotd/td/tg (current package)
		tl_account_saved_ringtones_slices_gen.go#L207: func (s AccountSavedRingtonesArray) Retain(keep func(x AccountSavedRingtones) bool) AccountSavedRingtonesArray {