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

one use

	github.com/gotd/td/tg (current package)
		tl_secure_plain_data_slices_gen.go#L165: func (s SecurePlainPhoneArray) Retain(keep func(x SecurePlainPhone) bool) SecurePlainPhoneArray {