package enum // RegistrationChannel identifies how a member registered. type RegistrationChannel string const ( RegistrationChannelEmail RegistrationChannel = "email" RegistrationChannelGoogle RegistrationChannel = "google" ) func (c RegistrationChannel) String() string { return string(c) } func (c RegistrationChannel) Valid() bool { switch c { case RegistrationChannelEmail, RegistrationChannelGoogle: return true default: return false } }