fix!: Added proto3 optional to Network primitive fields (#32254)

fix!: Added pagination to ListNetworks
fix!: Renamed `USER_MESSAGES_CCPA_MESSAGES_SHOWN` `Metric` to `USER_MESSAGES_US_STATES_MESSAGES_SHOWN`
docs: Updated documentation for `ad_review_center_ad_id` filter
feat: Added LineItem service
feat: Added additional Report metrics and dimensions
feat: Added write methods for AdUnits
feat: Added write methods for CustomTargetingKeys
docs: Updated documentation for Report metrics and dimensions
docs: Made `status` optional for SearchAdReviewCenterAds

PiperOrigin-RevId: 842183588

Source-Link: googleapis/googleapis@8c06c1e

Source-Link: googleapis/googleapis-gen@f5580fd
Copy-Tag: eyJwIjoiZ29vZ2xlLWFkcy1hZF9tYW5hZ2VyLy5Pd2xCb3QueWFtbCIsImgiOiJmNTU4MGZkMzQ2ODZhOTM1ZTc2MWQ4ZmZkYmU4ZDI4YmE5NTJmOTZmIn0=

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

google-ads-ad_manager/lib/google/ads/ad_manager.rb

@@ -1539,6 +1539,69 @@ def self.geo_target_service_available? version: :v1
         false
       end
 
+      ##
+      # Create a new client object for LineItemService.
+      #
+      # By default, this returns an instance of
+      # [Google::Ads::AdManager::V1::LineItemService::Rest::Client](https://rubydoc.info/gems/google-ads-ad_manager-v1/Google/Ads/AdManager/V1/LineItemService/Rest/Client)
+      # for a REST client for version V1 of the API.
+      # However, you can specify a different API version by passing it in the
+      # `version` parameter. If the LineItemService service is
+      # supported by that API version, and the corresponding gem is available, the
+      # appropriate versioned client will be returned.
+      #
+      # Raises an exception if the currently installed versioned client gem for the
+      # given API version does not support the LineItemService service.
+      # You can determine whether the method will succeed by calling
+      # {Google::Ads::AdManager.line_item_service_available?}.
+      #
+      # ## About LineItemService
+      #
+      # Provides methods for handling `LineItem` objects.
+      #
+      # @param version [::String, ::Symbol] The API version to connect to. Optional.
+      #   Defaults to `:v1`.
+      # @return [::Object] A client object for the specified version.
+      #
+      def self.line_item_service version: :v1, &block
+        require "google/ads/ad_manager/#{version.to_s.downcase}"
+
+        package_name = Google::Ads::AdManager
+                       .constants
+                       .select { |sym| sym.to_s.downcase == version.to_s.downcase.tr("_", "") }
+                       .first
+        service_module = Google::Ads::AdManager.const_get(package_name).const_get(:LineItemService)
+        service_module.const_get(:Rest).const_get(:Client).new(&block)
+      end
+
+      ##
+      # Determines whether the LineItemService service is supported by the current client.
+      # If true, you can retrieve a client object by calling {Google::Ads::AdManager.line_item_service}.
+      # If false, that method will raise an exception. This could happen if the given
+      # API version does not exist or does not support the LineItemService service,
+      # or if the versioned client gem needs an update to support the LineItemService service.
+      #
+      # @param version [::String, ::Symbol] The API version to connect to. Optional.
+      #   Defaults to `:v1`.
+      # @return [boolean] Whether the service is available.
+      #
+      def self.line_item_service_available? version: :v1
+        require "google/ads/ad_manager/#{version.to_s.downcase}"
+        package_name = Google::Ads::AdManager
+                       .constants
+                       .select { |sym| sym.to_s.downcase == version.to_s.downcase.tr("_", "") }
+                       .first
+        return false unless package_name
+        service_module = Google::Ads::AdManager.const_get package_name
+        return false unless service_module.const_defined? :LineItemService
+        service_module = service_module.const_get :LineItemService
+        return false unless service_module.const_defined? :Rest
+        service_module = service_module.const_get :Rest
+        service_module.const_defined? :Client
+      rescue ::LoadError
+        false
+      end
+
       ##
       # Create a new client object for MobileCarrierService.
       #

google-ads-ad_manager/test/google/ads/ad_manager/client_test.rb

@@ -280,6 +280,16 @@ def test_geo_target_service_rest
     end
   end
 
+  def test_line_item_service_rest
+    skip unless Google::Ads::AdManager.line_item_service_available?
+    Gapic::Rest::ClientStub.stub :new, DummyStub.new do
+      client = Google::Ads::AdManager.line_item_service do |config|
+        config.credentials = :dummy_credentials
+      end
+      assert_kind_of Google::Ads::AdManager::V1::LineItemService::Rest::Client, client
+    end
+  end
+
   def test_mobile_carrier_service_rest
     skip unless Google::Ads::AdManager.mobile_carrier_service_available?
     Gapic::Rest::ClientStub.stub :new, DummyStub.new do