SMSService.Error A type to define errors that can occur when performing SMS operations. Declarationenum Error TopicsIdentifying errorsSMSService.Error.notSupportedSMSService.Error.permanentFailureSMSService.Error.temporaryFailureSMSService.Error.unknown RelationshipsConforms ToDecodableEncodableEquatableErrorHashableLocalizedErrorSendableSendableMetatype