/***********************************************************
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License
 **********************************************************/ export interface MessageProperty { key : string ; isSystemProperty : boolean ; value : string ; } export interface SendMessageToDeviceParameters { connectionString : string ; deviceId : string ; messageBody : string ; messageProperties ? : MessageProperty [ ] ; } export interface DeviceInterface { sendMessageToDevice ( params ) : Promise < void > ; }