feat: added support for detecting key-value pairs in client provided metadata (#33807)

* feat: added support for detecting key-value pairs in client provided metadata

PiperOrigin-RevId: 895098649

Source-Link: googleapis/googleapis@544bab0

Source-Link: googleapis/googleapis-gen@676f5fc
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google-cloud-dlp-v2/lib/google/privacy/dlp/v2/dlp_pb.rb

@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included

google-cloud-dlp-v2/proto_docs/google/api/client.rb

@@ -488,11 +488,23 @@ module BytesType
         #     Content data to inspect or redact. Replaces `type` and `data`.
         #
         #     Note: The following fields are mutually exclusive: `byte_item`, `value`, `table`. If a field in that set is populated, all other fields in the set will automatically be cleared.
+        # @!attribute [rw] content_metadata
+        #   @return [::Google::Cloud::Dlp::V2::ContentMetadata]
+        #     User provided metadata for the content.
         class ContentItem
           include ::Google::Protobuf::MessageExts
           extend ::Google::Protobuf::MessageExts::ClassMethods
         end
 
+        # Metadata on content to be scanned.
+        # @!attribute [rw] properties
+        #   @return [::Array<::Google::Cloud::Dlp::V2::KeyValueMetadataProperty>]
+        #     User provided key-value pairs of content metadata.
+        class ContentMetadata
+          include ::Google::Protobuf::MessageExts
+          extend ::Google::Protobuf::MessageExts::ClassMethods
+        end
+
         # Structured content to inspect. Up to 50,000 `Value`s per request allowed. See
         # https://cloud.google.com/sensitive-data-protection/docs/inspecting-structured-text#inspecting_a_table
         # to learn more.
@@ -516,6 +528,18 @@ class Row
           end
         end
 
+        # A key-value pair in the Metadata.
+        # @!attribute [rw] key
+        #   @return [::String]
+        #     The key of the property.
+        # @!attribute [rw] value
+        #   @return [::String]
+        #     The value of the property.
+        class KeyValueMetadataProperty
+          include ::Google::Protobuf::MessageExts
+          extend ::Google::Protobuf::MessageExts::ClassMethods
+        end
+
         # All the findings for a single scanned item.
         # @!attribute [rw] findings
         #   @return [::Array<::Google::Cloud::Dlp::V2::Finding>]
@@ -8828,6 +8852,9 @@ module MetadataType
 
           # Metadata extracted from the files.
           CONTENT_METADATA = 3
+
+          # Metadata provided by the client.
+          CLIENT_PROVIDED_METADATA = 4
         end
 
         # Parts of the APIs which use certain infoTypes.