text: /*
   * Copyright (c) Microsoft Corporation. All rights reserved.
   * Licensed under the MIT License. See License.txt in the project root for
   * license information.
   *
   * Code generated by Microsoft (R) AutoRest Code Generator.
   * Changes may cause incorrect behavior and will be lost if the code is
   * regenerated.
   */
  
  'use strict';
  
  const msRest = require('ms-rest');
  const msRestAzure = require('ms-rest-azure');
  const WebResource = msRest.WebResource;
  
  
  /**
   * The operation to create or update the extension.
   *
   * @param {string} resourceGroupName The name of the resource group.
   *
   * @param {string} vmName The name of the virtual machine where the extension
   * should be create or updated.
   *
   * @param {string} vmExtensionName The name of the virtual machine extension.
   *
   * @param {object} extensionParameters Parameters supplied to the Create
   * Virtual Machine Extension operation.
   *
   * @param {string} [extensionParameters.forceUpdateTag] How the extension
   * handler should be forced to update even if the extension configuration has
   * not changed.
   *
   * @param {string} [extensionParameters.publisher] The name of the extension
   * handler publisher.
   *
   * @param {string} [extensionParameters.virtualMachineExtensionType] Specifies
   * the type of the extension; an example is "CustomScriptExtension".
   *
   * @param {string} [extensionParameters.typeHandlerVersion] Specifies the
   * version of the script handler.
   *
   * @param {boolean} [extensionParameters.autoUpgradeMinorVersion] Indicates
   * whether the extension should use a newer minor version if one is available
   * at deployment time. Once deployed, however, the extension will not upgrade
   * minor versions unless redeployed, even with this property set to true.
   *
   * @param {object} [extensionParameters.settings] Json formatted public
   * settings for the extension.
   *
   * @param {object} [extensionParameters.protectedSettings] The extension can
   * contain either protectedSettings or protectedSettingsFromKeyVault or no
   * protected settings at all.
   *
   * @param {object} [extensionParameters.instanceView] The virtual machine
   * extension instance view.
   *
   * @param {string} [extensionParameters.instanceView.name] The virtual machine
   * extension name.
   *
   * @param {string} [extensionParameters.instanceView.type] Specifies the type
   * of the extension; an example is "CustomScriptExtension".
   *
   * @param {string} [extensionParameters.instanceView.typeHandlerVersion]
   * Specifies the version of the script handler.
   *
   * @param {array} [extensionParameters.instanceView.substatuses] The resource
   * status information.
   *
   * @param {array} [extensionParameters.instanceView.statuses] The resource
   * status information.
   *
   * @param {string} extensionParameters.location Resource location
   *
   * @param {object} [extensionParameters.tags] Resource tags
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {object} [result]   - The deserialized result object if an error did not occur.
   *                      See {@link VirtualMachineExtension} for more
   *                      information.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _createOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
  
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
  
    // Send request
    this.beginCreateOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, (err, parsedResult, httpRequest, response) => {
      if (err) return callback(err);
  
      let initialResult = new msRest.HttpOperationResponse();
      initialResult.request = httpRequest;
      initialResult.response = response;
      initialResult.body = response.body;
      client.getLongRunningOperationResult(initialResult, options, (err, pollingResult) => {
        if (err) return callback(err);
  
        // Create Result
        let result = null;
  
        httpRequest = pollingResult.request;
        response = pollingResult.response;
        let responseBody = pollingResult.body;
        if (responseBody === '') responseBody = null;
  
        // Deserialize Response
        let parsedResponse = null;
        try {
          parsedResponse = JSON.parse(responseBody);
          result = JSON.parse(responseBody);
          if (parsedResponse !== null && parsedResponse !== undefined) {
            let resultMapper = new client.models['VirtualMachineExtension']().mapper();
            result = client.deserialize(resultMapper, parsedResponse, 'result');
          }
        } catch (error) {
          let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`);
          deserializationError.request = msRest.stripRequest(httpRequest);
          deserializationError.response = msRest.stripResponse(response);
          return callback(deserializationError);
        }
  
        return callback(null, result, httpRequest, response);
      });
    });
  }
  
  
  /**
   * The operation to delete the extension.
   *
   * @param {string} resourceGroupName The name of the resource group.
   *
   * @param {string} vmName The name of the virtual machine where the extension
   * should be deleted.
   *
   * @param {string} vmExtensionName The name of the virtual machine extension.
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {object} [result]   - The deserialized result object if an error did not occur.
   *                      See {@link OperationStatusResponse} for more
   *                      information.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _deleteMethod(resourceGroupName, vmName, vmExtensionName, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
  
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
  
    // Send request
    this.beginDeleteMethod(resourceGroupName, vmName, vmExtensionName, options, (err, parsedResult, httpRequest, response) => {
      if (err) return callback(err);
  
      let initialResult = new msRest.HttpOperationResponse();
      initialResult.request = httpRequest;
      initialResult.response = response;
      initialResult.body = response.body;
      client.getLongRunningOperationResult(initialResult, options, (err, pollingResult) => {
        if (err) return callback(err);
  
        // Create Result
        let result = null;
  
        httpRequest = pollingResult.request;
        response = pollingResult.response;
        let responseBody = pollingResult.body;
        if (responseBody === '') responseBody = null;
  
        // Deserialize Response
        let parsedResponse = null;
        try {
          parsedResponse = JSON.parse(responseBody);
          result = JSON.parse(responseBody);
          if (parsedResponse !== null && parsedResponse !== undefined) {
            let resultMapper = new client.models['OperationStatusResponse']().mapper();
            result = client.deserialize(resultMapper, parsedResponse, 'result');
          }
        } catch (error) {
          let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`);
          deserializationError.request = msRest.stripRequest(httpRequest);
          deserializationError.response = msRest.stripResponse(response);
          return callback(deserializationError);
        }
  
        return callback(null, result, httpRequest, response);
      });
    });
  }
  
  /**
   * The operation to get the extension.
   *
   * @param {string} resourceGroupName The name of the resource group.
   *
   * @param {string} vmName The name of the virtual machine containing the
   * extension.
   *
   * @param {string} vmExtensionName The name of the virtual machine extension.
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {string} [options.expand] The expand expression to apply on the
   * operation.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {object} [result]   - The deserialized result object if an error did not occur.
   *                      See {@link VirtualMachineExtension} for more
   *                      information.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _get(resourceGroupName, vmName, vmExtensionName, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    let expand = (options && options.expand !== undefined) ? options.expand : undefined;
    let apiVersion = '2017-03-30';
    // Validate
    try {
      if (resourceGroupName === null || resourceGroupName === undefined || typeof resourceGroupName.valueOf() !== 'string') {
        throw new Error('resourceGroupName cannot be null or undefined and it must be of type string.');
      }
      if (vmName === null || vmName === undefined || typeof vmName.valueOf() !== 'string') {
        throw new Error('vmName cannot be null or undefined and it must be of type string.');
      }
      if (vmExtensionName === null || vmExtensionName === undefined || typeof vmExtensionName.valueOf() !== 'string') {
        throw new Error('vmExtensionName cannot be null or undefined and it must be of type string.');
      }
      if (expand !== null && expand !== undefined && typeof expand.valueOf() !== 'string') {
        throw new Error('expand must be of type string.');
      }
      if (this.client.subscriptionId === null || this.client.subscriptionId === undefined || typeof this.client.subscriptionId.valueOf() !== 'string') {
        throw new Error('this.client.subscriptionId cannot be null or undefined and it must be of type string.');
      }
      if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
        throw new Error('this.client.acceptLanguage must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines/{vmName}/extensions/{vmExtensionName}';
    requestUrl = requestUrl.replace('{resourceGroupName}', encodeURIComponent(resourceGroupName));
    requestUrl = requestUrl.replace('{vmName}', encodeURIComponent(vmName));
    requestUrl = requestUrl.replace('{vmExtensionName}', encodeURIComponent(vmExtensionName));
    requestUrl = requestUrl.replace('{subscriptionId}', encodeURIComponent(this.client.subscriptionId));
    let queryParameters = [];
    if (expand !== null && expand !== undefined) {
      queryParameters.push('$expand=' + encodeURIComponent(expand));
    }
    queryParameters.push('api-version=' + encodeURIComponent(apiVersion));
    if (queryParameters.length > 0) {
      requestUrl += '?' + queryParameters.join('&');
    }
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'GET';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if (this.client.generateClientRequestId) {
        httpRequest.headers['x-ms-client-request-id'] = msRestAzure.generateUuid();
    }
    if (this.client.acceptLanguage !== undefined && this.client.acceptLanguage !== null) {
      httpRequest.headers['accept-language'] = this.client.acceptLanguage;
    }
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    httpRequest.body = null;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode !== 200) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            if (parsedErrorResponse.error) parsedErrorResponse = parsedErrorResponse.error;
            if (parsedErrorResponse.code) error.code = parsedErrorResponse.code;
            if (parsedErrorResponse.message) error.message = parsedErrorResponse.message;
          }
          if (parsedErrorResponse !== null && parsedErrorResponse !== undefined) {
            let resultMapper = new client.models['CloudError']().mapper();
            error.body = client.deserialize(resultMapper, parsedErrorResponse, 'error.body');
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
      // Deserialize Response
      if (statusCode === 200) {
        let parsedResponse = null;
        try {
          parsedResponse = JSON.parse(responseBody);
          result = JSON.parse(responseBody);
          if (parsedResponse !== null && parsedResponse !== undefined) {
            let resultMapper = new client.models['VirtualMachineExtension']().mapper();
            result = client.deserialize(resultMapper, parsedResponse, 'result');
          }
        } catch (error) {
          let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`);
          deserializationError.request = msRest.stripRequest(httpRequest);
          deserializationError.response = msRest.stripResponse(response);
          return callback(deserializationError);
        }
      }
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /**
   * The operation to create or update the extension.
   *
   * @param {string} resourceGroupName The name of the resource group.
   *
   * @param {string} vmName The name of the virtual machine where the extension
   * should be create or updated.
   *
   * @param {string} vmExtensionName The name of the virtual machine extension.
   *
   * @param {object} extensionParameters Parameters supplied to the Create
   * Virtual Machine Extension operation.
   *
   * @param {string} [extensionParameters.forceUpdateTag] How the extension
   * handler should be forced to update even if the extension configuration has
   * not changed.
   *
   * @param {string} [extensionParameters.publisher] The name of the extension
   * handler publisher.
   *
   * @param {string} [extensionParameters.virtualMachineExtensionType] Specifies
   * the type of the extension; an example is "CustomScriptExtension".
   *
   * @param {string} [extensionParameters.typeHandlerVersion] Specifies the
   * version of the script handler.
   *
   * @param {boolean} [extensionParameters.autoUpgradeMinorVersion] Indicates
   * whether the extension should use a newer minor version if one is available
   * at deployment time. Once deployed, however, the extension will not upgrade
   * minor versions unless redeployed, even with this property set to true.
   *
   * @param {object} [extensionParameters.settings] Json formatted public
   * settings for the extension.
   *
   * @param {object} [extensionParameters.protectedSettings] The extension can
   * contain either protectedSettings or protectedSettingsFromKeyVault or no
   * protected settings at all.
   *
   * @param {object} [extensionParameters.instanceView] The virtual machine
   * extension instance view.
   *
   * @param {string} [extensionParameters.instanceView.name] The virtual machine
   * extension name.
   *
   * @param {string} [extensionParameters.instanceView.type] Specifies the type
   * of the extension; an example is "CustomScriptExtension".
   *
   * @param {string} [extensionParameters.instanceView.typeHandlerVersion]
   * Specifies the version of the script handler.
   *
   * @param {array} [extensionParameters.instanceView.substatuses] The resource
   * status information.
   *
   * @param {array} [extensionParameters.instanceView.statuses] The resource
   * status information.
   *
   * @param {string} extensionParameters.location Resource location
   *
   * @param {object} [extensionParameters.tags] Resource tags
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {object} [result]   - The deserialized result object if an error did not occur.
   *                      See {@link VirtualMachineExtension} for more
   *                      information.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _beginCreateOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    let apiVersion = '2017-03-30';
    // Validate
    try {
      if (resourceGroupName === null || resourceGroupName === undefined || typeof resourceGroupName.valueOf() !== 'string') {
        throw new Error('resourceGroupName cannot be null or undefined and it must be of type string.');
      }
      if (vmName === null || vmName === undefined || typeof vmName.valueOf() !== 'string') {
        throw new Error('vmName cannot be null or undefined and it must be of type string.');
      }
      if (vmExtensionName === null || vmExtensionName === undefined || typeof vmExtensionName.valueOf() !== 'string') {
        throw new Error('vmExtensionName cannot be null or undefined and it must be of type string.');
      }
      if (extensionParameters === null || extensionParameters === undefined) {
        throw new Error('extensionParameters cannot be null or undefined.');
      }
      if (this.client.subscriptionId === null || this.client.subscriptionId === undefined || typeof this.client.subscriptionId.valueOf() !== 'string') {
        throw new Error('this.client.subscriptionId cannot be null or undefined and it must be of type string.');
      }
      if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
        throw new Error('this.client.acceptLanguage must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines/{vmName}/extensions/{vmExtensionName}';
    requestUrl = requestUrl.replace('{resourceGroupName}', encodeURIComponent(resourceGroupName));
    requestUrl = requestUrl.replace('{vmName}', encodeURIComponent(vmName));
    requestUrl = requestUrl.replace('{vmExtensionName}', encodeURIComponent(vmExtensionName));
    requestUrl = requestUrl.replace('{subscriptionId}', encodeURIComponent(this.client.subscriptionId));
    let queryParameters = [];
    queryParameters.push('api-version=' + encodeURIComponent(apiVersion));
    if (queryParameters.length > 0) {
      requestUrl += '?' + queryParameters.join('&');
    }
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'PUT';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if (this.client.generateClientRequestId) {
        httpRequest.headers['x-ms-client-request-id'] = msRestAzure.generateUuid();
    }
    if (this.client.acceptLanguage !== undefined && this.client.acceptLanguage !== null) {
      httpRequest.headers['accept-language'] = this.client.acceptLanguage;
    }
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    // Serialize Request
    let requestContent = null;
    let requestModel = null;
    try {
      if (extensionParameters !== null && extensionParameters !== undefined) {
        let requestModelMapper = new client.models['VirtualMachineExtension']().mapper();
        requestModel = client.serialize(requestModelMapper, extensionParameters, 'extensionParameters');
        requestContent = JSON.stringify(requestModel);
      }
    } catch (error) {
      let serializationError = new Error(`Error "${error.message}" occurred in serializing the ` +
          `payload - ${JSON.stringify(extensionParameters, null, 2)}.`);
      return callback(serializationError);
    }
    httpRequest.body = requestContent;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode !== 200 && statusCode !== 201) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            if (parsedErrorResponse.error) parsedErrorResponse = parsedErrorResponse.error;
            if (parsedErrorResponse.code) error.code = parsedErrorResponse.code;
            if (parsedErrorResponse.message) error.message = parsedErrorResponse.message;
          }
          if (parsedErrorResponse !== null && parsedErrorResponse !== undefined) {
            let resultMapper = new client.models['CloudError']().mapper();
            error.body = client.deserialize(resultMapper, parsedErrorResponse, 'error.body');
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
      // Deserialize Response
      if (statusCode === 200) {
        let parsedResponse = null;
        try {
          parsedResponse = JSON.parse(responseBody);
          result = JSON.parse(responseBody);
          if (parsedResponse !== null && parsedResponse !== undefined) {
            let resultMapper = new client.models['VirtualMachineExtension']().mapper();
            result = client.deserialize(resultMapper, parsedResponse, 'result');
          }
        } catch (error) {
          let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`);
          deserializationError.request = msRest.stripRequest(httpRequest);
          deserializationError.response = msRest.stripResponse(response);
          return callback(deserializationError);
        }
      }
      // Deserialize Response
      if (statusCode === 201) {
        let parsedResponse = null;
        try {
          parsedResponse = JSON.parse(responseBody);
          result = JSON.parse(responseBody);
          if (parsedResponse !== null && parsedResponse !== undefined) {
            let resultMapper = new client.models['VirtualMachineExtension']().mapper();
            result = client.deserialize(resultMapper, parsedResponse, 'result');
          }
        } catch (error) {
          let deserializationError1 = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`);
          deserializationError1.request = msRest.stripRequest(httpRequest);
          deserializationError1.response = msRest.stripResponse(response);
          return callback(deserializationError1);
        }
      }
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /**
   * The operation to delete the extension.
   *
   * @param {string} resourceGroupName The name of the resource group.
   *
   * @param {string} vmName The name of the virtual machine where the extension
   * should be deleted.
   *
   * @param {string} vmExtensionName The name of the virtual machine extension.
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {object} [result]   - The deserialized result object if an error did not occur.
   *                      See {@link OperationStatusResponse} for more
   *                      information.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _beginDeleteMethod(resourceGroupName, vmName, vmExtensionName, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    let apiVersion = '2017-03-30';
    // Validate
    try {
      if (resourceGroupName === null || resourceGroupName === undefined || typeof resourceGroupName.valueOf() !== 'string') {
        throw new Error('resourceGroupName cannot be null or undefined and it must be of type string.');
      }
      if (vmName === null || vmName === undefined || typeof vmName.valueOf() !== 'string') {
        throw new Error('vmName cannot be null or undefined and it must be of type string.');
      }
      if (vmExtensionName === null || vmExtensionName === undefined || typeof vmExtensionName.valueOf() !== 'string') {
        throw new Error('vmExtensionName cannot be null or undefined and it must be of type string.');
      }
      if (this.client.subscriptionId === null || this.client.subscriptionId === undefined || typeof this.client.subscriptionId.valueOf() !== 'string') {
        throw new Error('this.client.subscriptionId cannot be null or undefined and it must be of type string.');
      }
      if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
        throw new Error('this.client.acceptLanguage must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines/{vmName}/extensions/{vmExtensionName}';
    requestUrl = requestUrl.replace('{resourceGroupName}', encodeURIComponent(resourceGroupName));
    requestUrl = requestUrl.replace('{vmName}', encodeURIComponent(vmName));
    requestUrl = requestUrl.replace('{vmExtensionName}', encodeURIComponent(vmExtensionName));
    requestUrl = requestUrl.replace('{subscriptionId}', encodeURIComponent(this.client.subscriptionId));
    let queryParameters = [];
    queryParameters.push('api-version=' + encodeURIComponent(apiVersion));
    if (queryParameters.length > 0) {
      requestUrl += '?' + queryParameters.join('&');
    }
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'DELETE';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if (this.client.generateClientRequestId) {
        httpRequest.headers['x-ms-client-request-id'] = msRestAzure.generateUuid();
    }
    if (this.client.acceptLanguage !== undefined && this.client.acceptLanguage !== null) {
      httpRequest.headers['accept-language'] = this.client.acceptLanguage;
    }
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    httpRequest.body = null;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode !== 200 && statusCode !== 202 && statusCode !== 204) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            if (parsedErrorResponse.error) parsedErrorResponse = parsedErrorResponse.error;
            if (parsedErrorResponse.code) error.code = parsedErrorResponse.code;
            if (parsedErrorResponse.message) error.message = parsedErrorResponse.message;
          }
          if (parsedErrorResponse !== null && parsedErrorResponse !== undefined) {
            let resultMapper = new client.models['CloudError']().mapper();
            error.body = client.deserialize(resultMapper, parsedErrorResponse, 'error.body');
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
      // Deserialize Response
      if (statusCode === 200) {
        let parsedResponse = null;
        try {
          parsedResponse = JSON.parse(responseBody);
          result = JSON.parse(responseBody);
          if (parsedResponse !== null && parsedResponse !== undefined) {
            let resultMapper = new client.models['OperationStatusResponse']().mapper();
            result = client.deserialize(resultMapper, parsedResponse, 'result');
          }
        } catch (error) {
          let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`);
          deserializationError.request = msRest.stripRequest(httpRequest);
          deserializationError.response = msRest.stripResponse(response);
          return callback(deserializationError);
        }
      }
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /** Class representing a VirtualMachineExtensions. */
  class VirtualMachineExtensions {
    /**
     * Create a VirtualMachineExtensions.
     * @param {ComputeManagementClient} client Reference to the service client.
     */
    constructor(client) {
      this.client = client;
      this._createOrUpdate = _createOrUpdate;
      this._deleteMethod = _deleteMethod;
      this._get = _get;
      this._beginCreateOrUpdate = _beginCreateOrUpdate;
      this._beginDeleteMethod = _beginDeleteMethod;
    }
  
    /**
     * The operation to create or update the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine where the extension
     * should be create or updated.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} extensionParameters Parameters supplied to the Create
     * Virtual Machine Extension operation.
     *
     * @param {string} [extensionParameters.forceUpdateTag] How the extension
     * handler should be forced to update even if the extension configuration has
     * not changed.
     *
     * @param {string} [extensionParameters.publisher] The name of the extension
     * handler publisher.
     *
     * @param {string} [extensionParameters.virtualMachineExtensionType] Specifies
     * the type of the extension; an example is "CustomScriptExtension".
     *
     * @param {string} [extensionParameters.typeHandlerVersion] Specifies the
     * version of the script handler.
     *
     * @param {boolean} [extensionParameters.autoUpgradeMinorVersion] Indicates
     * whether the extension should use a newer minor version if one is available
     * at deployment time. Once deployed, however, the extension will not upgrade
     * minor versions unless redeployed, even with this property set to true.
     *
     * @param {object} [extensionParameters.settings] Json formatted public
     * settings for the extension.
     *
     * @param {object} [extensionParameters.protectedSettings] The extension can
     * contain either protectedSettings or protectedSettingsFromKeyVault or no
     * protected settings at all.
     *
     * @param {object} [extensionParameters.instanceView] The virtual machine
     * extension instance view.
     *
     * @param {string} [extensionParameters.instanceView.name] The virtual machine
     * extension name.
     *
     * @param {string} [extensionParameters.instanceView.type] Specifies the type
     * of the extension; an example is "CustomScriptExtension".
     *
     * @param {string} [extensionParameters.instanceView.typeHandlerVersion]
     * Specifies the version of the script handler.
     *
     * @param {array} [extensionParameters.instanceView.substatuses] The resource
     * status information.
     *
     * @param {array} [extensionParameters.instanceView.statuses] The resource
     * status information.
     *
     * @param {string} extensionParameters.location Resource location
     *
     * @param {object} [extensionParameters.tags] Resource tags
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<VirtualMachineExtension>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    createOrUpdateWithHttpOperationResponse(resourceGroupName, vmName, vmExtensionName, extensionParameters, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._createOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * The operation to create or update the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine where the extension
     * should be create or updated.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} extensionParameters Parameters supplied to the Create
     * Virtual Machine Extension operation.
     *
     * @param {string} [extensionParameters.forceUpdateTag] How the extension
     * handler should be forced to update even if the extension configuration has
     * not changed.
     *
     * @param {string} [extensionParameters.publisher] The name of the extension
     * handler publisher.
     *
     * @param {string} [extensionParameters.virtualMachineExtensionType] Specifies
     * the type of the extension; an example is "CustomScriptExtension".
     *
     * @param {string} [extensionParameters.typeHandlerVersion] Specifies the
     * version of the script handler.
     *
     * @param {boolean} [extensionParameters.autoUpgradeMinorVersion] Indicates
     * whether the extension should use a newer minor version if one is available
     * at deployment time. Once deployed, however, the extension will not upgrade
     * minor versions unless redeployed, even with this property set to true.
     *
     * @param {object} [extensionParameters.settings] Json formatted public
     * settings for the extension.
     *
     * @param {object} [extensionParameters.protectedSettings] The extension can
     * contain either protectedSettings or protectedSettingsFromKeyVault or no
     * protected settings at all.
     *
     * @param {object} [extensionParameters.instanceView] The virtual machine
     * extension instance view.
     *
     * @param {string} [extensionParameters.instanceView.name] The virtual machine
     * extension name.
     *
     * @param {string} [extensionParameters.instanceView.type] Specifies the type
     * of the extension; an example is "CustomScriptExtension".
     *
     * @param {string} [extensionParameters.instanceView.typeHandlerVersion]
     * Specifies the version of the script handler.
     *
     * @param {array} [extensionParameters.instanceView.substatuses] The resource
     * status information.
     *
     * @param {array} [extensionParameters.instanceView.statuses] The resource
     * status information.
     *
     * @param {string} extensionParameters.location Resource location
     *
     * @param {object} [extensionParameters.tags] Resource tags
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {VirtualMachineExtension} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {object} [result]   - The deserialized result object if an error did not occur.
     *                      See {@link VirtualMachineExtension} for more
     *                      information.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    createOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._createOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._createOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, optionalCallback);
      }
    }
  
    /**
     * The operation to delete the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine where the extension
     * should be deleted.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<OperationStatusResponse>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    deleteMethodWithHttpOperationResponse(resourceGroupName, vmName, vmExtensionName, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._deleteMethod(resourceGroupName, vmName, vmExtensionName, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * The operation to delete the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine where the extension
     * should be deleted.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {OperationStatusResponse} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {object} [result]   - The deserialized result object if an error did not occur.
     *                      See {@link OperationStatusResponse} for more
     *                      information.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    deleteMethod(resourceGroupName, vmName, vmExtensionName, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._deleteMethod(resourceGroupName, vmName, vmExtensionName, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._deleteMethod(resourceGroupName, vmName, vmExtensionName, options, optionalCallback);
      }
    }
  
    /**
     * The operation to get the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine containing the
     * extension.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {string} [options.expand] The expand expression to apply on the
     * operation.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<VirtualMachineExtension>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    getWithHttpOperationResponse(resourceGroupName, vmName, vmExtensionName, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._get(resourceGroupName, vmName, vmExtensionName, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * The operation to get the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine containing the
     * extension.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {string} [options.expand] The expand expression to apply on the
     * operation.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {VirtualMachineExtension} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {object} [result]   - The deserialized result object if an error did not occur.
     *                      See {@link VirtualMachineExtension} for more
     *                      information.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    get(resourceGroupName, vmName, vmExtensionName, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._get(resourceGroupName, vmName, vmExtensionName, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._get(resourceGroupName, vmName, vmExtensionName, options, optionalCallback);
      }
    }
  
    /**
     * The operation to create or update the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine where the extension
     * should be create or updated.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} extensionParameters Parameters supplied to the Create
     * Virtual Machine Extension operation.
     *
     * @param {string} [extensionParameters.forceUpdateTag] How the extension
     * handler should be forced to update even if the extension configuration has
     * not changed.
     *
     * @param {string} [extensionParameters.publisher] The name of the extension
     * handler publisher.
     *
     * @param {string} [extensionParameters.virtualMachineExtensionType] Specifies
     * the type of the extension; an example is "CustomScriptExtension".
     *
     * @param {string} [extensionParameters.typeHandlerVersion] Specifies the
     * version of the script handler.
     *
     * @param {boolean} [extensionParameters.autoUpgradeMinorVersion] Indicates
     * whether the extension should use a newer minor version if one is available
     * at deployment time. Once deployed, however, the extension will not upgrade
     * minor versions unless redeployed, even with this property set to true.
     *
     * @param {object} [extensionParameters.settings] Json formatted public
     * settings for the extension.
     *
     * @param {object} [extensionParameters.protectedSettings] The extension can
     * contain either protectedSettings or protectedSettingsFromKeyVault or no
     * protected settings at all.
     *
     * @param {object} [extensionParameters.instanceView] The virtual machine
     * extension instance view.
     *
     * @param {string} [extensionParameters.instanceView.name] The virtual machine
     * extension name.
     *
     * @param {string} [extensionParameters.instanceView.type] Specifies the type
     * of the extension; an example is "CustomScriptExtension".
     *
     * @param {string} [extensionParameters.instanceView.typeHandlerVersion]
     * Specifies the version of the script handler.
     *
     * @param {array} [extensionParameters.instanceView.substatuses] The resource
     * status information.
     *
     * @param {array} [extensionParameters.instanceView.statuses] The resource
     * status information.
     *
     * @param {string} extensionParameters.location Resource location
     *
     * @param {object} [extensionParameters.tags] Resource tags
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<VirtualMachineExtension>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    beginCreateOrUpdateWithHttpOperationResponse(resourceGroupName, vmName, vmExtensionName, extensionParameters, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._beginCreateOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * The operation to create or update the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine where the extension
     * should be create or updated.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} extensionParameters Parameters supplied to the Create
     * Virtual Machine Extension operation.
     *
     * @param {string} [extensionParameters.forceUpdateTag] How the extension
     * handler should be forced to update even if the extension configuration has
     * not changed.
     *
     * @param {string} [extensionParameters.publisher] The name of the extension
     * handler publisher.
     *
     * @param {string} [extensionParameters.virtualMachineExtensionType] Specifies
     * the type of the extension; an example is "CustomScriptExtension".
     *
     * @param {string} [extensionParameters.typeHandlerVersion] Specifies the
     * version of the script handler.
     *
     * @param {boolean} [extensionParameters.autoUpgradeMinorVersion] Indicates
     * whether the extension should use a newer minor version if one is available
     * at deployment time. Once deployed, however, the extension will not upgrade
     * minor versions unless redeployed, even with this property set to true.
     *
     * @param {object} [extensionParameters.settings] Json formatted public
     * settings for the extension.
     *
     * @param {object} [extensionParameters.protectedSettings] The extension can
     * contain either protectedSettings or protectedSettingsFromKeyVault or no
     * protected settings at all.
     *
     * @param {object} [extensionParameters.instanceView] The virtual machine
     * extension instance view.
     *
     * @param {string} [extensionParameters.instanceView.name] The virtual machine
     * extension name.
     *
     * @param {string} [extensionParameters.instanceView.type] Specifies the type
     * of the extension; an example is "CustomScriptExtension".
     *
     * @param {string} [extensionParameters.instanceView.typeHandlerVersion]
     * Specifies the version of the script handler.
     *
     * @param {array} [extensionParameters.instanceView.substatuses] The resource
     * status information.
     *
     * @param {array} [extensionParameters.instanceView.statuses] The resource
     * status information.
     *
     * @param {string} extensionParameters.location Resource location
     *
     * @param {object} [extensionParameters.tags] Resource tags
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {VirtualMachineExtension} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {object} [result]   - The deserialized result object if an error did not occur.
     *                      See {@link VirtualMachineExtension} for more
     *                      information.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    beginCreateOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._beginCreateOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._beginCreateOrUpdate(resourceGroupName, vmName, vmExtensionName, extensionParameters, options, optionalCallback);
      }
    }
  
    /**
     * The operation to delete the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine where the extension
     * should be deleted.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<OperationStatusResponse>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    beginDeleteMethodWithHttpOperationResponse(resourceGroupName, vmName, vmExtensionName, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._beginDeleteMethod(resourceGroupName, vmName, vmExtensionName, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * The operation to delete the extension.
     *
     * @param {string} resourceGroupName The name of the resource group.
     *
     * @param {string} vmName The name of the virtual machine where the extension
     * should be deleted.
     *
     * @param {string} vmExtensionName The name of the virtual machine extension.
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {OperationStatusResponse} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {object} [result]   - The deserialized result object if an error did not occur.
     *                      See {@link OperationStatusResponse} for more
     *                      information.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    beginDeleteMethod(resourceGroupName, vmName, vmExtensionName, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._beginDeleteMethod(resourceGroupName, vmName, vmExtensionName, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._beginDeleteMethod(resourceGroupName, vmName, vmExtensionName, options, optionalCallback);
      }
    }
  
  }
  
  module.exports = VirtualMachineExtensions;
  