# 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::Policy::Mgmt::V2017_06_01_preview
  #
  # To manage and control access to your resources, you can define customized
  # policies and assign them at a scope.
  #
  class PolicyAssignments
    include MsRestAzure

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

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

    #
    # Deletes a policy assignment.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment to
    # delete.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignment] operation results.
    #
    def delete(scope, policy_assignment_name, custom_headers:nil)
      response = delete_async(scope, policy_assignment_name, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Deletes a policy assignment.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment to
    # delete.
    # @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(scope, policy_assignment_name, custom_headers:nil)
      delete_async(scope, policy_assignment_name, custom_headers:custom_headers).value!
    end

    #
    # Deletes a policy assignment.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment to
    # delete.
    # @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(scope, policy_assignment_name, custom_headers:nil)
      fail ArgumentError, 'scope is nil' if scope.nil?
      fail ArgumentError, 'policy_assignment_name is nil' if policy_assignment_name.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 = '{scope}/providers/Microsoft.Authorization/policyAssignments/{policyAssignmentName}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'policyAssignmentName' => policy_assignment_name},
          skip_encoding_path_params: {'scope' => scope},
          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.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignment.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

    #
    # Creates a policy assignment.
    #
    # Policy assignments are inherited by child resources. For example, when you
    # apply a policy to a resource group that policy is assigned to all resources
    # in the group.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment.
    # @param parameters [PolicyAssignment] Parameters for the policy assignment.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignment] operation results.
    #
    def create(scope, policy_assignment_name, parameters, custom_headers:nil)
      response = create_async(scope, policy_assignment_name, parameters, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Creates a policy assignment.
    #
    # Policy assignments are inherited by child resources. For example, when you
    # apply a policy to a resource group that policy is assigned to all resources
    # in the group.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment.
    # @param parameters [PolicyAssignment] Parameters for the policy assignment.
    # @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(scope, policy_assignment_name, parameters, custom_headers:nil)
      create_async(scope, policy_assignment_name, parameters, custom_headers:custom_headers).value!
    end

    #
    # Creates a policy assignment.
    #
    # Policy assignments are inherited by child resources. For example, when you
    # apply a policy to a resource group that policy is assigned to all resources
    # in the group.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment.
    # @param parameters [PolicyAssignment] Parameters for the policy assignment.
    # @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(scope, policy_assignment_name, parameters, custom_headers:nil)
      fail ArgumentError, 'scope is nil' if scope.nil?
      fail ArgumentError, 'policy_assignment_name is nil' if policy_assignment_name.nil?
      fail ArgumentError, 'parameters is nil' if parameters.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?

      # Serialize Request
      request_mapper = Azure::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignment.mapper()
      request_content = @client.serialize(request_mapper,  parameters)
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '{scope}/providers/Microsoft.Authorization/policyAssignments/{policyAssignmentName}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'policyAssignmentName' => policy_assignment_name},
          skip_encoding_path_params: {'scope' => scope},
          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 == 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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-request-id'].nil?
        # Deserialize Response
        if status_code == 201
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = Azure::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignment.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

    #
    # Gets a policy assignment.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment to
    # get.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignment] operation results.
    #
    def get(scope, policy_assignment_name, custom_headers:nil)
      response = get_async(scope, policy_assignment_name, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Gets a policy assignment.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment to
    # get.
    # @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(scope, policy_assignment_name, custom_headers:nil)
      get_async(scope, policy_assignment_name, custom_headers:custom_headers).value!
    end

    #
    # Gets a policy assignment.
    #
    # @param scope [String] The scope of the policy assignment.
    # @param policy_assignment_name [String] The name of the policy assignment to
    # get.
    # @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(scope, policy_assignment_name, custom_headers:nil)
      fail ArgumentError, 'scope is nil' if scope.nil?
      fail ArgumentError, 'policy_assignment_name is nil' if policy_assignment_name.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 = '{scope}/providers/Microsoft.Authorization/policyAssignments/{policyAssignmentName}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'policyAssignmentName' => policy_assignment_name},
          skip_encoding_path_params: {'scope' => scope},
          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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignment.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

    #
    # Gets policy assignments for the resource group.
    #
    # @param resource_group_name [String] The name of the resource group that
    # contains policy assignments.
    # @param filter [String] The filter to apply on the operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Array<PolicyAssignment>] operation results.
    #
    def list_for_resource_group(resource_group_name, filter:nil, custom_headers:nil)
      first_page = list_for_resource_group_as_lazy(resource_group_name, filter:filter, custom_headers:custom_headers)
      first_page.get_all_items
    end

    #
    # Gets policy assignments for the resource group.
    #
    # @param resource_group_name [String] The name of the resource group that
    # contains policy assignments.
    # @param filter [String] The filter to apply on the 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_for_resource_group_with_http_info(resource_group_name, filter:nil, custom_headers:nil)
      list_for_resource_group_async(resource_group_name, filter:filter, custom_headers:custom_headers).value!
    end

    #
    # Gets policy assignments for the resource group.
    #
    # @param resource_group_name [String] The name of the resource group that
    # contains policy assignments.
    # @param filter [String] The filter to apply on the 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_for_resource_group_async(resource_group_name, filter:nil, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, "'resource_group_name' should satisfy the constraint - 'MaxLength': '90'" if !resource_group_name.nil? && resource_group_name.length > 90
      fail ArgumentError, "'resource_group_name' should satisfy the constraint - 'MinLength': '1'" if !resource_group_name.nil? && resource_group_name.length < 1
      fail ArgumentError, "'resource_group_name' should satisfy the constraint - 'Pattern': '^[-\w\._\(\)]+$'" if !resource_group_name.nil? && resource_group_name.match(Regexp.new('^^[-\w\._\(\)]+$$')).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.Authorization/policyAssignments'

      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},
          skip_encoding_query_params: {'$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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignmentListResult.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

    #
    # Gets policy assignments for a resource.
    #
    # @param resource_group_name [String] The name of the resource group containing
    # the resource. The name is case insensitive.
    # @param resource_provider_namespace [String] The namespace of the resource
    # provider.
    # @param parent_resource_path [String] The parent resource path.
    # @param resource_type [String] The resource type.
    # @param resource_name [String] The name of the resource with policy
    # assignments.
    # @param filter [String] The filter to apply on the operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Array<PolicyAssignment>] operation results.
    #
    def list_for_resource(resource_group_name, resource_provider_namespace, parent_resource_path, resource_type, resource_name, filter:nil, custom_headers:nil)
      first_page = list_for_resource_as_lazy(resource_group_name, resource_provider_namespace, parent_resource_path, resource_type, resource_name, filter:filter, custom_headers:custom_headers)
      first_page.get_all_items
    end

    #
    # Gets policy assignments for a resource.
    #
    # @param resource_group_name [String] The name of the resource group containing
    # the resource. The name is case insensitive.
    # @param resource_provider_namespace [String] The namespace of the resource
    # provider.
    # @param parent_resource_path [String] The parent resource path.
    # @param resource_type [String] The resource type.
    # @param resource_name [String] The name of the resource with policy
    # assignments.
    # @param filter [String] The filter to apply on the 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_for_resource_with_http_info(resource_group_name, resource_provider_namespace, parent_resource_path, resource_type, resource_name, filter:nil, custom_headers:nil)
      list_for_resource_async(resource_group_name, resource_provider_namespace, parent_resource_path, resource_type, resource_name, filter:filter, custom_headers:custom_headers).value!
    end

    #
    # Gets policy assignments for a resource.
    #
    # @param resource_group_name [String] The name of the resource group containing
    # the resource. The name is case insensitive.
    # @param resource_provider_namespace [String] The namespace of the resource
    # provider.
    # @param parent_resource_path [String] The parent resource path.
    # @param resource_type [String] The resource type.
    # @param resource_name [String] The name of the resource with policy
    # assignments.
    # @param filter [String] The filter to apply on the 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_for_resource_async(resource_group_name, resource_provider_namespace, parent_resource_path, resource_type, resource_name, filter:nil, custom_headers:nil)
      fail ArgumentError, 'resource_group_name is nil' if resource_group_name.nil?
      fail ArgumentError, "'resource_group_name' should satisfy the constraint - 'MaxLength': '90'" if !resource_group_name.nil? && resource_group_name.length > 90
      fail ArgumentError, "'resource_group_name' should satisfy the constraint - 'MinLength': '1'" if !resource_group_name.nil? && resource_group_name.length < 1
      fail ArgumentError, "'resource_group_name' should satisfy the constraint - 'Pattern': '^[-\w\._\(\)]+$'" if !resource_group_name.nil? && resource_group_name.match(Regexp.new('^^[-\w\._\(\)]+$$')).nil?
      fail ArgumentError, 'resource_provider_namespace is nil' if resource_provider_namespace.nil?
      fail ArgumentError, 'parent_resource_path is nil' if parent_resource_path.nil?
      fail ArgumentError, 'resource_type is nil' if resource_type.nil?
      fail ArgumentError, 'resource_name is nil' if resource_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 = {}
      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/{resourceProviderNamespace}/{parentResourcePath}/{resourceType}/{resourceName}/providers/Microsoft.Authorization/policyAssignments'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          path_params: {'resourceGroupName' => resource_group_name,'resourceProviderNamespace' => resource_provider_namespace,'resourceName' => resource_name,'subscriptionId' => @client.subscription_id},
          skip_encoding_path_params: {'parentResourcePath' => parent_resource_path,'resourceType' => resource_type},
          query_params: {'$filter' => filter,'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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignmentListResult.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

    #
    # Gets all the policy assignments for a subscription.
    #
    # @param filter [String] The filter to apply on the operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [Array<PolicyAssignment>] operation results.
    #
    def list(filter:nil, custom_headers:nil)
      first_page = list_as_lazy(filter:filter, custom_headers:custom_headers)
      first_page.get_all_items
    end

    #
    # Gets all the policy assignments for a subscription.
    #
    # @param filter [String] The filter to apply on the 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_with_http_info(filter:nil, custom_headers:nil)
      list_async(filter:filter, custom_headers:custom_headers).value!
    end

    #
    # Gets all the policy assignments for a subscription.
    #
    # @param filter [String] The filter to apply on the 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_async(filter:nil, 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.Authorization/policyAssignments'

      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: {'$filter' => filter,'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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignmentListResult.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 policy assignment by ID.
    #
    # When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to
    # delete. Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignment] operation results.
    #
    def delete_by_id(policy_assignment_id, custom_headers:nil)
      response = delete_by_id_async(policy_assignment_id, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Deletes a policy assignment by ID.
    #
    # When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to
    # delete. Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @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_by_id_with_http_info(policy_assignment_id, custom_headers:nil)
      delete_by_id_async(policy_assignment_id, custom_headers:custom_headers).value!
    end

    #
    # Deletes a policy assignment by ID.
    #
    # When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to
    # delete. Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @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_by_id_async(policy_assignment_id, custom_headers:nil)
      fail ArgumentError, 'policy_assignment_id is nil' if policy_assignment_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 = '{policyAssignmentId}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          skip_encoding_path_params: {'policyAssignmentId' => policy_assignment_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
          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.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignment.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

    #
    # Creates a policy assignment by ID.
    #
    # Policy assignments are inherited by child resources. For example, when you
    # apply a policy to a resource group that policy is assigned to all resources
    # in the group. When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to
    # create. Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @param parameters [PolicyAssignment] Parameters for policy assignment.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignment] operation results.
    #
    def create_by_id(policy_assignment_id, parameters, custom_headers:nil)
      response = create_by_id_async(policy_assignment_id, parameters, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Creates a policy assignment by ID.
    #
    # Policy assignments are inherited by child resources. For example, when you
    # apply a policy to a resource group that policy is assigned to all resources
    # in the group. When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to
    # create. Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @param parameters [PolicyAssignment] Parameters for policy assignment.
    # @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_by_id_with_http_info(policy_assignment_id, parameters, custom_headers:nil)
      create_by_id_async(policy_assignment_id, parameters, custom_headers:custom_headers).value!
    end

    #
    # Creates a policy assignment by ID.
    #
    # Policy assignments are inherited by child resources. For example, when you
    # apply a policy to a resource group that policy is assigned to all resources
    # in the group. When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to
    # create. Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @param parameters [PolicyAssignment] Parameters for policy assignment.
    # @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_by_id_async(policy_assignment_id, parameters, custom_headers:nil)
      fail ArgumentError, 'policy_assignment_id is nil' if policy_assignment_id.nil?
      fail ArgumentError, 'parameters is nil' if parameters.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?

      # Serialize Request
      request_mapper = Azure::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignment.mapper()
      request_content = @client.serialize(request_mapper,  parameters)
      request_content = request_content != nil ? JSON.generate(request_content, quirks_mode: true) : nil

      path_template = '{policyAssignmentId}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          skip_encoding_path_params: {'policyAssignmentId' => policy_assignment_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 == 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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-request-id'].nil?
        # Deserialize Response
        if status_code == 201
          begin
            parsed_response = response_content.to_s.empty? ? nil : JSON.load(response_content)
            result_mapper = Azure::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignment.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

    #
    # Gets a policy assignment by ID.
    #
    # When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to get.
    # Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignment] operation results.
    #
    def get_by_id(policy_assignment_id, custom_headers:nil)
      response = get_by_id_async(policy_assignment_id, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Gets a policy assignment by ID.
    #
    # When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to get.
    # Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @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_by_id_with_http_info(policy_assignment_id, custom_headers:nil)
      get_by_id_async(policy_assignment_id, custom_headers:custom_headers).value!
    end

    #
    # Gets a policy assignment by ID.
    #
    # When providing a scope for the assignment, use
    # '/subscriptions/{subscription-id}/' for subscriptions,
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}' for
    # resource groups, and
    # '/subscriptions/{subscription-id}/resourceGroups/{resource-group-name}/providers/{resource-provider-namespace}/{resource-type}/{resource-name}'
    # for resources.
    #
    # @param policy_assignment_id [String] The ID of the policy assignment to get.
    # Use the format
    # '/{scope}/providers/Microsoft.Authorization/policyAssignments/{policy-assignment-name}'.
    # @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_by_id_async(policy_assignment_id, custom_headers:nil)
      fail ArgumentError, 'policy_assignment_id is nil' if policy_assignment_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 = '{policyAssignmentId}'

      request_url = @base_url || @client.base_url

      options = {
          middlewares: [[MsRest::RetryPolicyMiddleware, times: 3, retry: 0.02], [:cookie_jar]],
          skip_encoding_path_params: {'policyAssignmentId' => policy_assignment_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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignment.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

    #
    # Gets policy assignments for the 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 [PolicyAssignmentListResult] operation results.
    #
    def list_for_resource_group_next(next_page_link, custom_headers:nil)
      response = list_for_resource_group_next_async(next_page_link, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Gets policy assignments for the 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_for_resource_group_next_with_http_info(next_page_link, custom_headers:nil)
      list_for_resource_group_next_async(next_page_link, custom_headers:custom_headers).value!
    end

    #
    # Gets policy assignments for the 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_for_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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignmentListResult.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

    #
    # Gets policy assignments for a resource.
    #
    # @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 [PolicyAssignmentListResult] operation results.
    #
    def list_for_resource_next(next_page_link, custom_headers:nil)
      response = list_for_resource_next_async(next_page_link, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end

    #
    # Gets policy assignments for a resource.
    #
    # @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_for_resource_next_with_http_info(next_page_link, custom_headers:nil)
      list_for_resource_next_async(next_page_link, custom_headers:custom_headers).value!
    end

    #
    # Gets policy assignments for a resource.
    #
    # @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_for_resource_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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignmentListResult.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

    #
    # Gets all the policy assignments for 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 [PolicyAssignmentListResult] 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

    #
    # Gets all the policy assignments for 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

    #
    # Gets all the policy assignments for 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?
        result.correlation_request_id = http_response['x-ms-correlation-request-id'] unless http_response['x-ms-correlation-request-id'].nil?
        result.client_request_id = http_response['x-ms-client-request-id'] unless http_response['x-ms-client-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::Policy::Mgmt::V2017_06_01_preview::Models::PolicyAssignmentListResult.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

    #
    # Gets policy assignments for the resource group.
    #
    # @param resource_group_name [String] The name of the resource group that
    # contains policy assignments.
    # @param filter [String] The filter to apply on the operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignmentListResult] which provide lazy access to pages of
    # the response.
    #
    def list_for_resource_group_as_lazy(resource_group_name, filter:nil, custom_headers:nil)
      response = list_for_resource_group_async(resource_group_name, filter:filter, custom_headers:custom_headers).value!
      unless response.nil?
        page = response.body
        page.next_method = Proc.new do |next_page_link|
          list_for_resource_group_next_async(next_page_link, custom_headers:custom_headers)
        end
        page
      end
    end

    #
    # Gets policy assignments for a resource.
    #
    # @param resource_group_name [String] The name of the resource group containing
    # the resource. The name is case insensitive.
    # @param resource_provider_namespace [String] The namespace of the resource
    # provider.
    # @param parent_resource_path [String] The parent resource path.
    # @param resource_type [String] The resource type.
    # @param resource_name [String] The name of the resource with policy
    # assignments.
    # @param filter [String] The filter to apply on the operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignmentListResult] which provide lazy access to pages of
    # the response.
    #
    def list_for_resource_as_lazy(resource_group_name, resource_provider_namespace, parent_resource_path, resource_type, resource_name, filter:nil, custom_headers:nil)
      response = list_for_resource_async(resource_group_name, resource_provider_namespace, parent_resource_path, resource_type, resource_name, filter:filter, custom_headers:custom_headers).value!
      unless response.nil?
        page = response.body
        page.next_method = Proc.new do |next_page_link|
          list_for_resource_next_async(next_page_link, custom_headers:custom_headers)
        end
        page
      end
    end

    #
    # Gets all the policy assignments for a subscription.
    #
    # @param filter [String] The filter to apply on the operation.
    # @param custom_headers [Hash{String => String}] A hash of custom headers that
    # will be added to the HTTP request.
    #
    # @return [PolicyAssignmentListResult] which provide lazy access to pages of
    # the response.
    #
    def list_as_lazy(filter:nil, custom_headers:nil)
      response = list_async(filter:filter, 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
