# encoding: utf-8
# Code generated by Microsoft (R) AutoRest Code Generator 0.17.0.0
# Changes may cause incorrect behavior and will be lost if the code is
# regenerated.

module Azure::ARM::Compute
  #
  # The Compute Management Client.
  #
  class VirtualMachineScaleSets
    include Azure::ARM::Compute::Models
    include MsRestAzure

    #
    # Creates and initializes a new instance of the VirtualMachineScaleSets class.
    # @param client service class for accessing basic functionality.
    #
    def initialize(client)
      @client = client
    end

    # @return [ComputeManagementClient] reference to the ComputeManagementClient
    attr_reader :client

    #
    # Allows you to create or update a virtual machine scale set by providing
    # parameters or a path to pre-configured parameter file.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param name [String] Parameters supplied to the Create Virtual Machine Scale
    # Set operation.
    # @param parameters [VirtualMachineScaleSet] Parameters supplied to the Create
    # Virtual Machine Scale Set operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSet] operation results.
    #
    def create_or_update(resource_group_name, name, parameters, custom_headers = nil)
      response = create_or_update_async(resource_group_name, name, parameters, custom_headers).value!
      response.body unless response.nil?
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param name [String] Parameters supplied to the Create Virtual Machine Scale
    # Set operation.
    # @param parameters [VirtualMachineScaleSet] Parameters supplied to the Create
    # Virtual Machine Scale Set operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def create_or_update_async(resource_group_name, name, parameters, custom_headers = nil)
      # Send request
      promise = begin_create_or_update_async(resource_group_name, name, parameters, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
          result_mapper = VirtualMachineScaleSet.mapper()
          parsed_response = @client.deserialize(result_mapper, parsed_response, 'parsed_response')
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to create or update a virtual machine scale set by providing
    # parameters or a path to pre-configured parameter file.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param name [String] Parameters supplied to the Create Virtual Machine Scale
    # Set operation.
    # @param parameters [VirtualMachineScaleSet] Parameters supplied to the Create
    # Virtual Machine Scale Set operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSet] operation results.
    #
    def begin_create_or_update(resource_group_name, name, parameters, custom_headers = nil)
      response = begin_create_or_update_async(resource_group_name, name, parameters, custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Allows you to create or update a virtual machine scale set by providing
    # parameters or a path to pre-configured parameter file.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param name [String] Parameters supplied to the Create Virtual Machine Scale
    # Set operation.
    # @param parameters [VirtualMachineScaleSet] Parameters supplied to the Create
    # Virtual Machine Scale Set operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_create_or_update_with_http_info(resource_group_name, name, parameters, custom_headers = nil)
      begin_create_or_update_async(resource_group_name, name, parameters, custom_headers).value!
    end

    #
    # Allows you to create or update a virtual machine scale set by providing
    # parameters or a path to pre-configured parameter file.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param name [String] Parameters supplied to the Create Virtual Machine Scale
    # Set operation.
    # @param parameters [VirtualMachineScaleSet] Parameters supplied to the Create
    # Virtual Machine Scale Set operation.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_create_or_update_async(resource_group_name, name, parameters, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'name is nil' if name.nil?
      fail ArgumentError, 'parameters is nil' if parameters.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?

      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # Serialize Request
      request_mapper = VirtualMachineScaleSet.mapper()
      request_content = @client.serialize(request_mapper,  parameters, 'parameters')
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{name}'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'name' => name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :put, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200 || status_code == 201
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSet.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end
        # Deserialize Response
        if status_code == 201
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSet.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

    #
    # Allows you to deallocate virtual machines in a virtual machine scale set.
    # Shuts down the virtual machines and releases the compute resources. You are
    # not billed for the compute resources that this virtual machine scale set
    # uses.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    def deallocate(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      response = deallocate_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def deallocate_async(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      # Send request
      promise = begin_deallocate_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to deallocate virtual machines in a virtual machine scale set.
    # Shuts down the virtual machines and releases the compute resources. You are
    # not billed for the compute resources that this virtual machine scale set
    # uses.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def begin_deallocate(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      response = begin_deallocate_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # Allows you to deallocate virtual machines in a virtual machine scale set.
    # Shuts down the virtual machines and releases the compute resources. You are
    # not billed for the compute resources that this virtual machine scale set
    # uses.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_deallocate_with_http_info(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      begin_deallocate_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
    end

    #
    # Allows you to deallocate virtual machines in a virtual machine scale set.
    # Shuts down the virtual machines and releases the compute resources. You are
    # not billed for the compute resources that this virtual machine scale set
    # uses.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_deallocate_async(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?

      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # Serialize Request
      request_mapper = VirtualMachineScaleSetVMInstanceIDs.mapper()
      request_content = @client.serialize(request_mapper,  vm_instance_ids, 'vm_instance_ids')
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/deallocate'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :post, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 202
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Allows you to delete a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    def delete(resource_group_name, vm_scale_set_name, custom_headers = nil)
      response = delete_async(resource_group_name, vm_scale_set_name, custom_headers).value!
      nil
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def delete_async(resource_group_name, vm_scale_set_name, custom_headers = nil)
      # Send request
      promise = begin_delete_async(resource_group_name, vm_scale_set_name, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to delete a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def begin_delete(resource_group_name, vm_scale_set_name, custom_headers = nil)
      response = begin_delete_async(resource_group_name, vm_scale_set_name, custom_headers).value!
      nil
    end

    #
    # Allows you to delete a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_delete_with_http_info(resource_group_name, vm_scale_set_name, custom_headers = nil)
      begin_delete_async(resource_group_name, vm_scale_set_name, custom_headers).value!
    end

    #
    # Allows you to delete a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_delete_async(resource_group_name, vm_scale_set_name, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :delete, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200 || status_code == 202 || status_code == 204
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Display information about a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSet] operation results.
    #
    def get(resource_group_name, vm_scale_set_name, custom_headers = nil)
      response = get_async(resource_group_name, vm_scale_set_name, custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Display information about a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def get_with_http_info(resource_group_name, vm_scale_set_name, custom_headers = nil)
      get_async(resource_group_name, vm_scale_set_name, custom_headers).value!
    end

    #
    # Display information about a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def get_async(resource_group_name, vm_scale_set_name, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :get, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSet.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

    #
    # Allows you to delete virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    def delete_instances(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      response = delete_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def delete_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      # Send request
      promise = begin_delete_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to delete virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def begin_delete_instances(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      response = begin_delete_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # Allows you to delete virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_delete_instances_with_http_info(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      begin_delete_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
    end

    #
    # Allows you to delete virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_delete_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, 'vm_instance_ids is nil' if vm_instance_ids.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?

      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # Serialize Request
      request_mapper = VirtualMachineScaleSetVMInstanceRequiredIDs.mapper()
      request_content = @client.serialize(request_mapper,  vm_instance_ids, 'vm_instance_ids')
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/delete'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :post, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 202
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Displays status of a virtual machine scale set instance.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSetInstanceView] operation results.
    #
    def get_instance_view(resource_group_name, vm_scale_set_name, custom_headers = nil)
      response = get_instance_view_async(resource_group_name, vm_scale_set_name, custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Displays status of a virtual machine scale set instance.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def get_instance_view_with_http_info(resource_group_name, vm_scale_set_name, custom_headers = nil)
      get_instance_view_async(resource_group_name, vm_scale_set_name, custom_headers).value!
    end

    #
    # Displays status of a virtual machine scale set instance.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def get_instance_view_async(resource_group_name, vm_scale_set_name, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/instanceView'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :get, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSetInstanceView.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

    #
    # Lists all virtual machine scale sets under a resource group.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSetListResult] which provide lazy access to
    # pages of the response.
    #
    def list_as_lazy(resource_group_name, custom_headers = nil)
      response = list_async(resource_group_name, custom_headers).value!
      unless response.nil?
        page = response.body
        page.next_method = Proc.new do |next_link|
          list_next_async(next_link, custom_headers)
        end
        page
      end
    end

    #
    # Lists all virtual machine scale sets under a resource group.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Array<VirtualMachineScaleSet>] operation results.
    #
    def list(resource_group_name, custom_headers = nil)
      first_page = list_as_lazy(resource_group_name, custom_headers)
      first_page.get_all_items
    end

    #
    # Lists all virtual machine scale sets under a resource group.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def list_with_http_info(resource_group_name, custom_headers = nil)
      list_async(resource_group_name, custom_headers).value!
    end

    #
    # Lists all virtual machine scale sets under a resource group.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def list_async(resource_group_name, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :get, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSetListResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

    #
    # Lists all Virtual Machine Scale Sets in the subscription. Use nextLink
    # property in the response to get the next page of Virtual Machine Scale
    # Sets. Do this till nextLink is not null to fetch all the Virtual Machine
    # Scale Sets.
    #
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSetListWithLinkResult] which provide lazy access
    # to pages of the response.
    #
    def list_all_as_lazy(custom_headers = nil)
      response = list_all_async(custom_headers).value!
      unless response.nil?
        page = response.body
        page.next_method = Proc.new do |next_link|
          list_all_next_async(next_link, custom_headers)
        end
        page
      end
    end

    #
    # Lists all Virtual Machine Scale Sets in the subscription. Use nextLink
    # property in the response to get the next page of Virtual Machine Scale
    # Sets. Do this till nextLink is not null to fetch all the Virtual Machine
    # Scale Sets.
    #
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Array<VirtualMachineScaleSet>] operation results.
    #
    def list_all(custom_headers = nil)
      first_page = list_all_as_lazy(custom_headers)
      first_page.get_all_items
    end

    #
    # Lists all Virtual Machine Scale Sets in the subscription. Use nextLink
    # property in the response to get the next page of Virtual Machine Scale
    # Sets. Do this till nextLink is not null to fetch all the Virtual Machine
    # Scale Sets.
    #
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def list_all_with_http_info(custom_headers = nil)
      list_all_async(custom_headers).value!
    end

    #
    # Lists all Virtual Machine Scale Sets in the subscription. Use nextLink
    # property in the response to get the next page of Virtual Machine Scale
    # Sets. Do this till nextLink is not null to fetch all the Virtual Machine
    # Scale Sets.
    #
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def list_all_async(custom_headers = nil)
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '/subscriptions/{subscriptionId}/providers/Microsoft.Compute/virtualMachineScaleSets'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :get, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSetListWithLinkResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

    #
    # Displays available skus for your virtual machine scale set including the
    # minimum and maximum vm instances allowed for a particular sku.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSetListSkusResult] which provide lazy access to
    # pages of the response.
    #
    def list_skus_as_lazy(resource_group_name, vm_scale_set_name, custom_headers = nil)
      response = list_skus_async(resource_group_name, vm_scale_set_name, custom_headers).value!
      unless response.nil?
        page = response.body
        page.next_method = Proc.new do |next_link|
          list_skus_next_async(next_link, custom_headers)
        end
        page
      end
    end

    #
    # Displays available skus for your virtual machine scale set including the
    # minimum and maximum vm instances allowed for a particular sku.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Array<VirtualMachineScaleSetSku>] operation results.
    #
    def list_skus(resource_group_name, vm_scale_set_name, custom_headers = nil)
      first_page = list_skus_as_lazy(resource_group_name, vm_scale_set_name, custom_headers)
      first_page.get_all_items
    end

    #
    # Displays available skus for your virtual machine scale set including the
    # minimum and maximum vm instances allowed for a particular sku.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def list_skus_with_http_info(resource_group_name, vm_scale_set_name, custom_headers = nil)
      list_skus_async(resource_group_name, vm_scale_set_name, custom_headers).value!
    end

    #
    # Displays available skus for your virtual machine scale set including the
    # minimum and maximum vm instances allowed for a particular sku.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def list_skus_async(resource_group_name, vm_scale_set_name, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/skus'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :get, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSetListSkusResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

    #
    # Allows you to power off (stop) virtual machines in a virtual machine scale
    # set. Note that resources are still attached and you are getting charged for
    # the resources. Use deallocate to release resources.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    def power_off(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      response = power_off_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def power_off_async(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      # Send request
      promise = begin_power_off_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to power off (stop) virtual machines in a virtual machine scale
    # set. Note that resources are still attached and you are getting charged for
    # the resources. Use deallocate to release resources.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def begin_power_off(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      response = begin_power_off_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # Allows you to power off (stop) virtual machines in a virtual machine scale
    # set. Note that resources are still attached and you are getting charged for
    # the resources. Use deallocate to release resources.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_power_off_with_http_info(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      begin_power_off_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
    end

    #
    # Allows you to power off (stop) virtual machines in a virtual machine scale
    # set. Note that resources are still attached and you are getting charged for
    # the resources. Use deallocate to release resources.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_power_off_async(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?

      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # Serialize Request
      request_mapper = VirtualMachineScaleSetVMInstanceIDs.mapper()
      request_content = @client.serialize(request_mapper,  vm_instance_ids, 'vm_instance_ids')
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/poweroff'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :post, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 202
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Allows you to restart virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    def restart(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      response = restart_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def restart_async(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      # Send request
      promise = begin_restart_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to restart virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def begin_restart(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      response = begin_restart_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # Allows you to restart virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_restart_with_http_info(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      begin_restart_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
    end

    #
    # Allows you to restart virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_restart_async(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?

      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # Serialize Request
      request_mapper = VirtualMachineScaleSetVMInstanceIDs.mapper()
      request_content = @client.serialize(request_mapper,  vm_instance_ids, 'vm_instance_ids')
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/restart'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :post, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 202
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Allows you to start virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    def start(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      response = start_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def start_async(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      # Send request
      promise = begin_start_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to start virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def begin_start(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      response = begin_start_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # Allows you to start virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_start_with_http_info(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      begin_start_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
    end

    #
    # Allows you to start virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceIDs] The list of
    # virtual machine scale set instance IDs.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_start_async(resource_group_name, vm_scale_set_name, vm_instance_ids = nil, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?

      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # Serialize Request
      request_mapper = VirtualMachineScaleSetVMInstanceIDs.mapper()
      request_content = @client.serialize(request_mapper,  vm_instance_ids, 'vm_instance_ids')
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/start'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :post, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 202
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Allows you to manually upgrade virtual machines in a virtual machine scale
    # set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    def update_instances(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      response = update_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def update_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      # Send request
      promise = begin_update_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to manually upgrade virtual machines in a virtual machine scale
    # set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def begin_update_instances(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      response = begin_update_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
      nil
    end

    #
    # Allows you to manually upgrade virtual machines in a virtual machine scale
    # set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_update_instances_with_http_info(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      begin_update_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers).value!
    end

    #
    # Allows you to manually upgrade virtual machines in a virtual machine scale
    # set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param vm_instance_ids [VirtualMachineScaleSetVMInstanceRequiredIDs] The
    # list of virtual machine scale set instance IDs.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_update_instances_async(resource_group_name, vm_scale_set_name, vm_instance_ids, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, 'vm_instance_ids is nil' if vm_instance_ids.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?

      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # Serialize Request
      request_mapper = VirtualMachineScaleSetVMInstanceRequiredIDs.mapper()
      request_content = @client.serialize(request_mapper,  vm_instance_ids, 'vm_instance_ids')
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/manualupgrade'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :post, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 202
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Allows you to re-image(update the version of the installed operating system)
    # virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    def reimage(resource_group_name, vm_scale_set_name, custom_headers = nil)
      response = reimage_async(resource_group_name, vm_scale_set_name, custom_headers).value!
      nil
    end

    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Concurrent::Promise] promise which provides async access to http
    # response.
    #
    def reimage_async(resource_group_name, vm_scale_set_name, custom_headers = nil)
      # Send request
      promise = begin_reimage_async(resource_group_name, vm_scale_set_name, custom_headers)

      promise = promise.then do |response|
        # Defining deserialization method.
        deserialize_method = lambda do |parsed_response|
        end

        # Waiting for response.
        @client.get_long_running_operation_result(response, deserialize_method)
      end

      promise
    end

    #
    # Allows you to re-image(update the version of the installed operating system)
    # virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def begin_reimage(resource_group_name, vm_scale_set_name, custom_headers = nil)
      response = begin_reimage_async(resource_group_name, vm_scale_set_name, custom_headers).value!
      nil
    end

    #
    # Allows you to re-image(update the version of the installed operating system)
    # virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def begin_reimage_with_http_info(resource_group_name, vm_scale_set_name, custom_headers = nil)
      begin_reimage_async(resource_group_name, vm_scale_set_name, custom_headers).value!
    end

    #
    # Allows you to re-image(update the version of the installed operating system)
    # virtual machines in a virtual machine scale set.
    #
    # @param resource_group_name [String] The name of the resource group.
    # @param vm_scale_set_name [String] The name of the virtual machine scale set.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def begin_reimage_async(resource_group_name, vm_scale_set_name, custom_headers = nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'vm_scale_set_name is nil' if vm_scale_set_name.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/reimage'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'vmScaleSetName' => vm_scale_set_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :post, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 202
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Lists all virtual machine scale sets under a resource group.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSetListResult] operation results.
    #
    def list_next(next_page_link, custom_headers = nil)
      response = list_next_async(next_page_link, custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Lists all virtual machine scale sets under a resource group.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def list_next_with_http_info(next_page_link, custom_headers = nil)
      list_next_async(next_page_link, custom_headers).value!
    end

    #
    # Lists all virtual machine scale sets under a resource group.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def list_next_async(next_page_link, custom_headers = nil)
      fail ArgumentError, 'next_page_link is nil' if next_page_link.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '{nextLink}'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          skip_encoding_path_params: {'nextLink' => next_page_link},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :get, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSetListResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

    #
    # Lists all Virtual Machine Scale Sets in the subscription. Use nextLink
    # property in the response to get the next page of Virtual Machine Scale
    # Sets. Do this till nextLink is not null to fetch all the Virtual Machine
    # Scale Sets.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSetListWithLinkResult] operation results.
    #
    def list_all_next(next_page_link, custom_headers = nil)
      response = list_all_next_async(next_page_link, custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Lists all Virtual Machine Scale Sets in the subscription. Use nextLink
    # property in the response to get the next page of Virtual Machine Scale
    # Sets. Do this till nextLink is not null to fetch all the Virtual Machine
    # Scale Sets.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def list_all_next_with_http_info(next_page_link, custom_headers = nil)
      list_all_next_async(next_page_link, custom_headers).value!
    end

    #
    # Lists all Virtual Machine Scale Sets in the subscription. Use nextLink
    # property in the response to get the next page of Virtual Machine Scale
    # Sets. Do this till nextLink is not null to fetch all the Virtual Machine
    # Scale Sets.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def list_all_next_async(next_page_link, custom_headers = nil)
      fail ArgumentError, 'next_page_link is nil' if next_page_link.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '{nextLink}'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          skip_encoding_path_params: {'nextLink' => next_page_link},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :get, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSetListWithLinkResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

    #
    # Displays available skus for your virtual machine scale set including the
    # minimum and maximum vm instances allowed for a particular sku.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [VirtualMachineScaleSetListSkusResult] operation results.
    #
    def list_skus_next(next_page_link, custom_headers = nil)
      response = list_skus_next_async(next_page_link, custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Displays available skus for your virtual machine scale set including the
    # minimum and maximum vm instances allowed for a particular sku.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [MsRestAzure::AzureOperationResponse] HTTP response information.
    #
    def list_skus_next_with_http_info(next_page_link, custom_headers = nil)
      list_skus_next_async(next_page_link, custom_headers).value!
    end

    #
    # Displays available skus for your virtual machine scale set including the
    # minimum and maximum vm instances allowed for a particular sku.
    #
    # @param next_page_link [String] The NextLink from the previous successful
    # call to List operation.
    # @param [Hash{String => String}] A hash of custom headers that will be added
    # to the HTTP request.
    #
    # @return [Concurrent::Promise] Promise object which holds the HTTP response.
    #
    def list_skus_next_async(next_page_link, custom_headers = nil)
      fail ArgumentError, 'next_page_link is nil' if next_page_link.nil?


      request_headers = {}

      # Set Headers
      request_headers['x-ms-client-request-id'] = SecureRandom.uuid
      request_headers['accept-language'] = @client.accept_language unless @client.accept_language.nil?
      path_template = '{nextLink}'
      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          skip_encoding_path_params: {'nextLink' => next_page_link},
          headers: request_headers.merge(custom_headers || {})
      }

      request_url = @base_url || @client.base_url

      request = MsRest::HttpOperationRequest.new(request_url, path_template, :get, options)
      promise = request.run_promise do |req|
        @client.credentials.sign_request(req) unless @client.credentials.nil?
      end

      promise = promise.then do |http_response|
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200
          error_model = JSON.load(response_content)
          fail MsRestAzure::AzureOperationError.new(request, http_response, error_model)
        end

        # Create Result
        result = MsRestAzure::AzureOperationResponse.new(request, http_response)
        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?
        # Deserialize Response
        if status_code == 200
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = VirtualMachineScaleSetListSkusResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response, 'result.body')
          rescue Exception => e
            fail MsRest::DeserializationError.new('Error occurred in deserializing the response', e.message, e.backtrace, result)
          end
        end

        result
      end

      promise.execute
    end

  end
end