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

module Azure::CognitiveServices::Mgmt::V2017_04_18
  #
  # Cognitive Services Management Client
  #
  class Accounts
    include MsRestAzure

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

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

    #
    # Create Cognitive Services Account. Accounts is a resource group wide resource
    # type. It holds the keys for developer to access intelligent APIs. It's also
    # the resource type for billing.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param parameters [CognitiveServicesAccountCreateParameters] The parameters
    # to provide for the created account.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [CognitiveServicesAccount] operation results.
    #
    def create(resource_group_name, account_name, parameters, custom_headers:nil)
      response = create_async(resource_group_name, account_name, parameters, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Create Cognitive Services Account. Accounts is a resource group wide resource
    # type. It holds the keys for developer to access intelligent APIs. It's also
    # the resource type for billing.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param parameters [CognitiveServicesAccountCreateParameters] The parameters
    # to provide for the created account.
    # @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 create_with_http_info(resource_group_name, account_name, parameters, custom_headers:nil)
      create_async(resource_group_name, account_name, parameters, custom_headers:custom_headers).value!
    end

    #
    # Create Cognitive Services Account. Accounts is a resource group wide resource
    # type. It holds the keys for developer to access intelligent APIs. It's also
    # the resource type for billing.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param parameters [CognitiveServicesAccountCreateParameters] The parameters
    # to provide for the created account.
    # @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 create_async(resource_group_name, account_name, parameters, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'account_name is nil' if account_name.nil?
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MaxLength': '64'" if !account_name.nil? && account_name.length > 64
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MinLength': '2'" if !account_name.nil? && account_name.length < 2
      fail ArgumentError, "'account_name' should satisfy the constraint - 'Pattern': '^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'" if !account_name.nil? && account_name.match(Regexp.new('^^[a-zA-Z0-9][a-zA-Z0-9_.-]*$$')).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 = {}
      request_headers['Content-Type'] = 'application/json; charset=utf-8'

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

      # Serialize Request
      request_mapper = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountCreateParameters.mapper()
      request_content = @client.serialize(request_mapper,  parameters)
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = 'subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'accountName' => account_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:put, path_template, options)

      promise = promise.then do |result|
        http_response = result.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 MsRest::HttpOperationError.new(result.request, http_response, error_model)
        end

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccount.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccount.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Updates a Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param sku [Sku] Gets or sets the SKU of the resource.
    # @param tags [Hash{String => String}] Gets or sets a list of key value pairs
    # that describe the resource. These tags can be used in viewing and grouping
    # this resource (across resource groups). A maximum of 15 tags can be provided
    # for a resource. Each tag must have a key no greater than 128 characters and
    # value no greater than 256 characters.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [CognitiveServicesAccount] operation results.
    #
    def update(resource_group_name, account_name, sku:nil, tags:nil, custom_headers:nil)
      response = update_async(resource_group_name, account_name, sku:sku, tags:tags, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Updates a Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param sku [Sku] Gets or sets the SKU of the resource.
    # @param tags [Hash{String => String}] Gets or sets a list of key value pairs
    # that describe the resource. These tags can be used in viewing and grouping
    # this resource (across resource groups). A maximum of 15 tags can be provided
    # for a resource. Each tag must have a key no greater than 128 characters and
    # value no greater than 256 characters.
    # @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 update_with_http_info(resource_group_name, account_name, sku:nil, tags:nil, custom_headers:nil)
      update_async(resource_group_name, account_name, sku:sku, tags:tags, custom_headers:custom_headers).value!
    end

    #
    # Updates a Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param sku [Sku] Gets or sets the SKU of the resource.
    # @param tags [Hash{String => String}] Gets or sets a list of key value pairs
    # that describe the resource. These tags can be used in viewing and grouping
    # this resource (across resource groups). A maximum of 15 tags can be provided
    # for a resource. Each tag must have a key no greater than 128 characters and
    # value no greater than 256 characters.
    # @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 update_async(resource_group_name, account_name, sku:nil, tags:nil, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'account_name is nil' if account_name.nil?
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MaxLength': '64'" if !account_name.nil? && account_name.length > 64
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MinLength': '2'" if !account_name.nil? && account_name.length < 2
      fail ArgumentError, "'account_name' should satisfy the constraint - 'Pattern': '^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'" if !account_name.nil? && account_name.match(Regexp.new('^^[a-zA-Z0-9][a-zA-Z0-9_.-]*$$')).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?

      parameters = CognitiveServicesAccountUpdateParameters.new
      unless sku.nil? && tags.nil?
        parameters.sku = sku
        parameters.tags = tags
      end

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

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

      # Serialize Request
      request_mapper = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountUpdateParameters.mapper()
      request_content = @client.serialize(request_mapper,  parameters)
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = 'subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'accountName' => account_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:patch, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccount.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Deletes a Cognitive Services account from the resource group.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    #
    def delete(resource_group_name, account_name, custom_headers:nil)
      response = delete_async(resource_group_name, account_name, custom_headers:custom_headers).value!
      nil
    end

    #
    # Deletes a Cognitive Services account from the resource group.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @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 delete_with_http_info(resource_group_name, account_name, custom_headers:nil)
      delete_async(resource_group_name, account_name, custom_headers:custom_headers).value!
    end

    #
    # Deletes a Cognitive Services account from the resource group.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @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 delete_async(resource_group_name, account_name, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'account_name is nil' if account_name.nil?
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MaxLength': '64'" if !account_name.nil? && account_name.length > 64
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MinLength': '2'" if !account_name.nil? && account_name.length < 2
      fail ArgumentError, "'account_name' should satisfy the constraint - 'Pattern': '^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'" if !account_name.nil? && account_name.match(Regexp.new('^^[a-zA-Z0-9][a-zA-Z0-9_.-]*$$')).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 = {}
      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # 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.CognitiveServices/accounts/{accountName}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'accountName' => account_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:delete, path_template, options)

      promise = promise.then do |result|
        http_response = result.response
        status_code = http_response.status
        response_content = http_response.body
        unless status_code == 200 || status_code == 204
          error_model = JSON.load(response_content)
          fail MsRest::HttpOperationError.new(result.request, http_response, error_model)
        end

        result.request_id = http_response['x-ms-request-id'] unless http_response['x-ms-request-id'].nil?

        result
      end

      promise.execute
    end

    #
    # Returns a Cognitive Services account specified by the parameters.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [CognitiveServicesAccount] operation results.
    #
    def get_properties(resource_group_name, account_name, custom_headers:nil)
      response = get_properties_async(resource_group_name, account_name, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Returns a Cognitive Services account specified by the parameters.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @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_properties_with_http_info(resource_group_name, account_name, custom_headers:nil)
      get_properties_async(resource_group_name, account_name, custom_headers:custom_headers).value!
    end

    #
    # Returns a Cognitive Services account specified by the parameters.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @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_properties_async(resource_group_name, account_name, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'account_name is nil' if account_name.nil?
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MaxLength': '64'" if !account_name.nil? && account_name.length > 64
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MinLength': '2'" if !account_name.nil? && account_name.length < 2
      fail ArgumentError, "'account_name' should satisfy the constraint - 'Pattern': '^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'" if !account_name.nil? && account_name.match(Regexp.new('^^[a-zA-Z0-9][a-zA-Z0-9_.-]*$$')).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 = {}
      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # 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.CognitiveServices/accounts/{accountName}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'accountName' => account_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:get, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccount.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Returns all the resources of a particular type belonging to a resource group
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Array<CognitiveServicesAccount>] operation results.
    #
    def list_by_resource_group(resource_group_name, custom_headers:nil)
      first_page = list_by_resource_group_as_lazy(resource_group_name, custom_headers:custom_headers)
      first_page.get_all_items
    end

    #
    # Returns all the resources of a particular type belonging to a resource group
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @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_by_resource_group_with_http_info(resource_group_name, custom_headers:nil)
      list_by_resource_group_async(resource_group_name, custom_headers:custom_headers).value!
    end

    #
    # Returns all the resources of a particular type belonging to a resource group
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @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_by_resource_group_async(resource_group_name, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, '@client.subscription_id is nil' if @client.subscription_id.nil?
      fail ArgumentError, '@client.api_version is nil' if @client.api_version.nil?


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

      # 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.CognitiveServices/accounts'

      request_url = @base_url || @client.base_url

      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 || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:get, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountListResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Returns all the resources of a particular type belonging to a subscription.
    #
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Array<CognitiveServicesAccount>] operation results.
    #
    def list(custom_headers:nil)
      first_page = list_as_lazy(custom_headers:custom_headers)
      first_page.get_all_items
    end

    #
    # Returns all the resources of a particular type belonging to a subscription.
    #
    # @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(custom_headers:nil)
      list_async(custom_headers:custom_headers).value!
    end

    #
    # Returns all the resources of a particular type belonging to a subscription.
    #
    # @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(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 = {}
      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # 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.CognitiveServices/accounts'

      request_url = @base_url || @client.base_url

      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 || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:get, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountListResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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 the account keys for the specified Cognitive Services account.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [CognitiveServicesAccountKeys] operation results.
    #
    def list_keys(resource_group_name, account_name, custom_headers:nil)
      response = list_keys_async(resource_group_name, account_name, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Lists the account keys for the specified Cognitive Services account.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @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_keys_with_http_info(resource_group_name, account_name, custom_headers:nil)
      list_keys_async(resource_group_name, account_name, custom_headers:custom_headers).value!
    end

    #
    # Lists the account keys for the specified Cognitive Services account.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @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_keys_async(resource_group_name, account_name, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'account_name is nil' if account_name.nil?
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MaxLength': '64'" if !account_name.nil? && account_name.length > 64
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MinLength': '2'" if !account_name.nil? && account_name.length < 2
      fail ArgumentError, "'account_name' should satisfy the constraint - 'Pattern': '^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'" if !account_name.nil? && account_name.match(Regexp.new('^^[a-zA-Z0-9][a-zA-Z0-9_.-]*$$')).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 = {}
      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # 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.CognitiveServices/accounts/{accountName}/listKeys'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'accountName' => account_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:post, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountKeys.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Regenerates the specified account key for the specified Cognitive Services
    # account.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param key_name [KeyName] key name to generate (Key1|Key2). Possible values
    # include: 'Key1', 'Key2'
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [CognitiveServicesAccountKeys] operation results.
    #
    def regenerate_key(resource_group_name, account_name, key_name, custom_headers:nil)
      response = regenerate_key_async(resource_group_name, account_name, key_name, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Regenerates the specified account key for the specified Cognitive Services
    # account.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param key_name [KeyName] key name to generate (Key1|Key2). Possible values
    # include: 'Key1', 'Key2'
    # @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 regenerate_key_with_http_info(resource_group_name, account_name, key_name, custom_headers:nil)
      regenerate_key_async(resource_group_name, account_name, key_name, custom_headers:custom_headers).value!
    end

    #
    # Regenerates the specified account key for the specified Cognitive Services
    # account.
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param key_name [KeyName] key name to generate (Key1|Key2). Possible values
    # include: 'Key1', 'Key2'
    # @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 regenerate_key_async(resource_group_name, account_name, key_name, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'account_name is nil' if account_name.nil?
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MaxLength': '64'" if !account_name.nil? && account_name.length > 64
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MinLength': '2'" if !account_name.nil? && account_name.length < 2
      fail ArgumentError, "'account_name' should satisfy the constraint - 'Pattern': '^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'" if !account_name.nil? && account_name.match(Regexp.new('^^[a-zA-Z0-9][a-zA-Z0-9_.-]*$$')).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?
      fail ArgumentError, 'key_name is nil' if key_name.nil?

      parameters = RegenerateKeyParameters.new
      unless key_name.nil?
        parameters.key_name = key_name
      end

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

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

      # Serialize Request
      request_mapper = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::RegenerateKeyParameters.mapper()
      request_content = @client.serialize(request_mapper,  parameters)
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = 'subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}/regenerateKey'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'accountName' => account_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          body: request_content,
          headers: request_headers.merge(custom_headers || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:post, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountKeys.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # List available SKUs for the requested Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [CognitiveServicesAccountEnumerateSkusResult] operation results.
    #
    def list_skus(resource_group_name, account_name, custom_headers:nil)
      response = list_skus_async(resource_group_name, account_name, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # List available SKUs for the requested Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @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, account_name, custom_headers:nil)
      list_skus_async(resource_group_name, account_name, custom_headers:custom_headers).value!
    end

    #
    # List available SKUs for the requested Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @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, account_name, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'account_name is nil' if account_name.nil?
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MaxLength': '64'" if !account_name.nil? && account_name.length > 64
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MinLength': '2'" if !account_name.nil? && account_name.length < 2
      fail ArgumentError, "'account_name' should satisfy the constraint - 'Pattern': '^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'" if !account_name.nil? && account_name.match(Regexp.new('^^[a-zA-Z0-9][a-zA-Z0-9_.-]*$$')).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 = {}
      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # 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.CognitiveServices/accounts/{accountName}/skus'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'accountName' => account_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version},
          headers: request_headers.merge(custom_headers || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:get, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountEnumerateSkusResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Get usages for the requested Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param filter [String] An OData filter expression that describes a subset of
    # usages to return. The supported parameter is name.value (name of the metric,
    # can have an or of multiple names).
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [UsagesResult] operation results.
    #
    def get_usages(resource_group_name, account_name, filter:nil, custom_headers:nil)
      response = get_usages_async(resource_group_name, account_name, filter:filter, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Get usages for the requested Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param filter [String] An OData filter expression that describes a subset of
    # usages to return. The supported parameter is name.value (name of the metric,
    # can have an or of multiple names).
    # @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_usages_with_http_info(resource_group_name, account_name, filter:nil, custom_headers:nil)
      get_usages_async(resource_group_name, account_name, filter:filter, custom_headers:custom_headers).value!
    end

    #
    # Get usages for the requested Cognitive Services account
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param account_name [String] The name of Cognitive Services account.
    # @param filter [String] An OData filter expression that describes a subset of
    # usages to return. The supported parameter is name.value (name of the metric,
    # can have an or of multiple names).
    # @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_usages_async(resource_group_name, account_name, filter:nil, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, 'account_name is nil' if account_name.nil?
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MaxLength': '64'" if !account_name.nil? && account_name.length > 64
      fail ArgumentError, "'account_name' should satisfy the constraint - 'MinLength': '2'" if !account_name.nil? && account_name.length < 2
      fail ArgumentError, "'account_name' should satisfy the constraint - 'Pattern': '^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'" if !account_name.nil? && account_name.match(Regexp.new('^^[a-zA-Z0-9][a-zA-Z0-9_.-]*$$')).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 = {}
      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # 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.CognitiveServices/accounts/{accountName}/usages'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'accountName' => account_name,'subscriptionId' => @client.subscription_id},
          query_params: {'api-version' => @client.api_version,'$filter' => filter},
          headers: request_headers.merge(custom_headers || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:get, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::UsagesResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Returns all the resources of a particular type belonging to 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 [CognitiveServicesAccountListResult] operation results.
    #
    def list_by_resource_group_next(next_page_link, custom_headers:nil)
      response = list_by_resource_group_next_async(next_page_link, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Returns all the resources of a particular type belonging to 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_by_resource_group_next_with_http_info(next_page_link, custom_headers:nil)
      list_by_resource_group_next_async(next_page_link, custom_headers:custom_headers).value!
    end

    #
    # Returns all the resources of a particular type belonging to 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_by_resource_group_next_async(next_page_link, custom_headers:nil)
      fail ArgumentError, 'next_page_link is nil' if next_page_link.nil?


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

      # 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}'

      request_url = @base_url || @client.base_url

      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 || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:get, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountListResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Returns all the resources of a particular type belonging to a subscription.
    #
    # @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 [CognitiveServicesAccountListResult] operation results.
    #
    def list_next(next_page_link, custom_headers:nil)
      response = list_next_async(next_page_link, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Returns all the resources of a particular type belonging to a subscription.
    #
    # @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:custom_headers).value!
    end

    #
    # Returns all the resources of a particular type belonging to a subscription.
    #
    # @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 = {}
      request_headers['Content-Type'] = 'application/json; charset=utf-8'

      # 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}'

      request_url = @base_url || @client.base_url

      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 || {}),
          base_url: request_url
      }
      promise = @client.make_request_async(:get, path_template, options)

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

        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 = Azure::CognitiveServices::Mgmt::V2017_04_18::Models::CognitiveServicesAccountListResult.mapper()
            result.body = @client.deserialize(result_mapper, parsed_response)
          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

    #
    # Returns all the resources of a particular type belonging to a resource group
    #
    # @param resource_group_name [String] The name of the resource group within the
    # user's subscription.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [CognitiveServicesAccountListResult] which provide lazy access to
    # pages of the response.
    #
    def list_by_resource_group_as_lazy(resource_group_name, custom_headers:nil)
      response = list_by_resource_group_async(resource_group_name, custom_headers:custom_headers).value!
      unless response.nil?
        page = response.body
        page.next_method = Proc.new do |next_page_link|
          list_by_resource_group_next_async(next_page_link, custom_headers:custom_headers)
        end
        page
      end
    end

    #
    # Returns all the resources of a particular type belonging to a subscription.
    #
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [CognitiveServicesAccountListResult] which provide lazy access to
    # pages of the response.
    #
    def list_as_lazy(custom_headers:nil)
      response = list_async(custom_headers:custom_headers).value!
      unless response.nil?
        page = response.body
        page.next_method = Proc.new do |next_page_link|
          list_next_async(next_page_link, custom_headers:custom_headers)
        end
        page
      end
    end

  end
end