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

one use

	github.com/gotd/td/tg (current package)
		tl_encrypted_chat_slices_gen.go#L863: func (s EncryptedChatDiscardedArray) Retain(keep func(x EncryptedChatDiscarded) bool) EncryptedChatDiscardedArray {