diff --git a/google-shopping-merchant-data_sources-v1beta/proto_docs/google/api/client.rb b/google-shopping-merchant-data_sources-v1beta/proto_docs/google/api/client.rb
index 483a6510978e..a8b1b06d1cad 100644
--- a/google-shopping-merchant-data_sources-v1beta/proto_docs/google/api/client.rb
+++ b/google-shopping-merchant-data_sources-v1beta/proto_docs/google/api/client.rb
@@ -141,9 +141,10 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          library_package: com.google.cloud.pubsub.v1
+    #         publishing:
+    #           library_settings:
+    #             java_settings:
+    #               library_package: com.google.cloud.pubsub.v1
     # @!attribute [rw] service_class_names
     #   @return [::Google::Protobuf::Map{::String => ::String}]
     #     Configure the Java class name to use instead of the service's for its
@@ -155,11 +156,11 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          service_class_names:
-    #            - google.pubsub.v1.Publisher: TopicAdmin
-    #            - google.pubsub.v1.Subscriber: SubscriptionAdmin
+    #         publishing:
+    #           java_settings:
+    #             service_class_names:
+    #               - google.pubsub.v1.Publisher: TopicAdmin
+    #               - google.pubsub.v1.Subscriber: SubscriptionAdmin
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
@@ -190,6 +191,20 @@ class CppSettings
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
+    # @!attribute [rw] library_package
+    #   @return [::String]
+    #     The package name to use in Php. Clobbers the php_namespace option
+    #     set in the protobuf. This should be used **only** by APIs
+    #     who have already set the language_settings.php.package_name" field
+    #     in gapic.yaml. API teams should use the protobuf php_namespace option
+    #     where possible.
+    #
+    #     Example of a YAML configuration::
+    #
+    #         publishing:
+    #           library_settings:
+    #             php_settings:
+    #               library_package: Google\Cloud\PubSub\V1
     class PhpSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -318,10 +333,12 @@ class RubySettings
     #     service names and values are the name to be used for the service client
     #     and call options.
     #
-    #     publishing:
-    #       go_settings:
-    #         renamed_services:
-    #           Publisher: TopicAdmin
+    #     Example:
+    #
+    #         publishing:
+    #           go_settings:
+    #             renamed_services:
+    #               Publisher: TopicAdmin
     class GoSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -344,10 +361,10 @@ class RenamedServicesEntry
     #
     #     Example:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.storage.control.v2.StorageControl.CreateFolder
-    #            # method settings for CreateFolder...
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.storage.control.v2.StorageControl.CreateFolder
+    #             # method settings for CreateFolder...
     # @!attribute [rw] long_running
     #   @return [::Google::Api::MethodSettings::LongRunning]
     #     Describes settings to use for long-running operations when generating
@@ -356,14 +373,14 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration::
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.cloud.speech.v2.Speech.BatchRecognize
-    #            long_running:
-    #              initial_poll_delay: 60s # 1 minute
-    #              poll_delay_multiplier: 1.5
-    #              max_poll_delay: 360s # 6 minutes
-    #              total_poll_timeout: 54000s # 90 minutes
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.cloud.speech.v2.Speech.BatchRecognize
+    #             long_running:
+    #               initial_poll_delay: 60s # 1 minute
+    #               poll_delay_multiplier: 1.5
+    #               max_poll_delay: 360s # 6 minutes
+    #               total_poll_timeout: 54000s # 90 minutes
     # @!attribute [rw] auto_populated_fields
     #   @return [::Array<::String>]
     #     List of top-level fields of the request message, that should be
@@ -372,11 +389,24 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.example.v1.ExampleService.CreateExample
-    #            auto_populated_fields:
-    #            - request_id
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.CreateExample
+    #             auto_populated_fields:
+    #             - request_id
+    # @!attribute [rw] batching
+    #   @return [::Google::Api::BatchingConfigProto]
+    #     Batching configuration for an API method in client libraries.
+    #
+    #     Example of a YAML configuration:
+    #
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.BatchCreateExample
+    #             batching:
+    #               element_count_threshold: 1000
+    #               request_byte_threshold: 100000000
+    #               delay_threshold_millis: 10
     class MethodSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -428,6 +458,77 @@ class SelectiveGapicGeneration
       extend ::Google::Protobuf::MessageExts::ClassMethods
     end
 
+    # `BatchingConfigProto` defines the batching configuration for an API method.
+    # @!attribute [rw] thresholds
+    #   @return [::Google::Api::BatchingSettingsProto]
+    #     The thresholds which trigger a batched request to be sent.
+    # @!attribute [rw] batch_descriptor
+    #   @return [::Google::Api::BatchingDescriptorProto]
+    #     The request and response fields used in batching.
+    class BatchingConfigProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingSettingsProto` specifies a set of batching thresholds, each of
+    # which acts as a trigger to send a batch of messages as a request. At least
+    # one threshold must be positive nonzero.
+    # @!attribute [rw] element_count_threshold
+    #   @return [::Integer]
+    #     The number of elements of a field collected into a batch which, if
+    #     exceeded, causes the batch to be sent.
+    # @!attribute [rw] request_byte_threshold
+    #   @return [::Integer]
+    #     The aggregated size of the batched field which, if exceeded, causes the
+    #     batch to be sent. This size is computed by aggregating the sizes of the
+    #     request field to be batched, not of the entire request message.
+    # @!attribute [rw] delay_threshold
+    #   @return [::Google::Protobuf::Duration]
+    #     The duration after which a batch should be sent, starting from the addition
+    #     of the first message to that batch.
+    # @!attribute [rw] element_count_limit
+    #   @return [::Integer]
+    #     The maximum number of elements collected in a batch that could be accepted
+    #     by server.
+    # @!attribute [rw] request_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of the request that could be accepted by server.
+    # @!attribute [rw] flow_control_element_limit
+    #   @return [::Integer]
+    #     The maximum number of elements allowed by flow control.
+    # @!attribute [rw] flow_control_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of data allowed by flow control.
+    # @!attribute [rw] flow_control_limit_exceeded_behavior
+    #   @return [::Google::Api::FlowControlLimitExceededBehaviorProto]
+    #     The behavior to take when the flow control limit is exceeded.
+    class BatchingSettingsProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingDescriptorProto` specifies the fields of the request message to be
+    # used for batching, and, optionally, the fields of the response message to be
+    # used for demultiplexing.
+    # @!attribute [rw] batched_field
+    #   @return [::String]
+    #     The repeated field in the request message to be aggregated by batching.
+    # @!attribute [rw] discriminator_fields
+    #   @return [::Array<::String>]
+    #     A list of the fields in the request message. Two requests will be batched
+    #     together only if the values of every field specified in
+    #     `request_discriminator_fields` is equal between the two requests.
+    # @!attribute [rw] subresponse_field
+    #   @return [::String]
+    #     Optional. When present, indicates the field in the response message to be
+    #     used to demultiplex the response into multiple response messages, in
+    #     correspondence with the multiple request messages originally batched
+    #     together.
+    class BatchingDescriptorProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
     # The organization for which the client libraries are being published.
     # Affects the url where generated docs are published, etc.
     module ClientLibraryOrganization
@@ -469,5 +570,20 @@ module ClientLibraryDestination
       # Publish the library to package managers like nuget.org and npmjs.com.
       PACKAGE_MANAGER = 20
     end
+
+    # The behavior to take when the flow control limit is exceeded.
+    module FlowControlLimitExceededBehaviorProto
+      # Default behavior, system-defined.
+      UNSET_BEHAVIOR = 0
+
+      # Stop operation, raise error.
+      THROW_EXCEPTION = 1
+
+      # Pause operation until limit clears.
+      BLOCK = 2
+
+      # Continue operation, disregard limit.
+      IGNORE = 3
+    end
   end
 end
diff --git a/google-shopping-merchant-data_sources-v1beta/proto_docs/google/type/timeofday.rb b/google-shopping-merchant-data_sources-v1beta/proto_docs/google/type/timeofday.rb
index dcbd7c6bd3f8..cb08ea9cd37f 100644
--- a/google-shopping-merchant-data_sources-v1beta/proto_docs/google/type/timeofday.rb
+++ b/google-shopping-merchant-data_sources-v1beta/proto_docs/google/type/timeofday.rb
@@ -25,18 +25,22 @@ module Type
     # `google.protobuf.Timestamp`.
     # @!attribute [rw] hours
     #   @return [::Integer]
-    #     Hours of day in 24 hour format. Should be from 0 to 23. An API may choose
-    #     to allow the value "24:00:00" for scenarios like business closing time.
+    #     Hours of a day in 24 hour format. Must be greater than or equal to 0 and
+    #     typically must be less than or equal to 23. An API may choose to allow the
+    #     value "24:00:00" for scenarios like business closing time.
     # @!attribute [rw] minutes
     #   @return [::Integer]
-    #     Minutes of hour of day. Must be from 0 to 59.
+    #     Minutes of an hour. Must be greater than or equal to 0 and less than or
+    #     equal to 59.
     # @!attribute [rw] seconds
     #   @return [::Integer]
-    #     Seconds of minutes of the time. Must normally be from 0 to 59. An API may
-    #     allow the value 60 if it allows leap-seconds.
+    #     Seconds of a minute. Must be greater than or equal to 0 and typically must
+    #     be less than or equal to 59. An API may allow the value 60 if it allows
+    #     leap-seconds.
     # @!attribute [rw] nanos
     #   @return [::Integer]
-    #     Fractions of seconds in nanoseconds. Must be from 0 to 999,999,999.
+    #     Fractions of seconds, in nanoseconds. Must be greater than or equal to 0
+    #     and less than or equal to 999,999,999.
     class TimeOfDay
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
diff --git a/google-shopping-merchant-order_tracking-v1/proto_docs/google/api/client.rb b/google-shopping-merchant-order_tracking-v1/proto_docs/google/api/client.rb
index c6b6b60729c9..25b227e61cdc 100644
--- a/google-shopping-merchant-order_tracking-v1/proto_docs/google/api/client.rb
+++ b/google-shopping-merchant-order_tracking-v1/proto_docs/google/api/client.rb
@@ -141,9 +141,10 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          library_package: com.google.cloud.pubsub.v1
+    #         publishing:
+    #           library_settings:
+    #             java_settings:
+    #               library_package: com.google.cloud.pubsub.v1
     # @!attribute [rw] service_class_names
     #   @return [::Google::Protobuf::Map{::String => ::String}]
     #     Configure the Java class name to use instead of the service's for its
@@ -155,11 +156,11 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          service_class_names:
-    #            - google.pubsub.v1.Publisher: TopicAdmin
-    #            - google.pubsub.v1.Subscriber: SubscriptionAdmin
+    #         publishing:
+    #           java_settings:
+    #             service_class_names:
+    #               - google.pubsub.v1.Publisher: TopicAdmin
+    #               - google.pubsub.v1.Subscriber: SubscriptionAdmin
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
@@ -190,6 +191,20 @@ class CppSettings
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
+    # @!attribute [rw] library_package
+    #   @return [::String]
+    #     The package name to use in Php. Clobbers the php_namespace option
+    #     set in the protobuf. This should be used **only** by APIs
+    #     who have already set the language_settings.php.package_name" field
+    #     in gapic.yaml. API teams should use the protobuf php_namespace option
+    #     where possible.
+    #
+    #     Example of a YAML configuration::
+    #
+    #         publishing:
+    #           library_settings:
+    #             php_settings:
+    #               library_package: Google\Cloud\PubSub\V1
     class PhpSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -318,10 +333,12 @@ class RubySettings
     #     service names and values are the name to be used for the service client
     #     and call options.
     #
-    #     publishing:
-    #       go_settings:
-    #         renamed_services:
-    #           Publisher: TopicAdmin
+    #     Example:
+    #
+    #         publishing:
+    #           go_settings:
+    #             renamed_services:
+    #               Publisher: TopicAdmin
     class GoSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -344,10 +361,10 @@ class RenamedServicesEntry
     #
     #     Example:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.storage.control.v2.StorageControl.CreateFolder
-    #            # method settings for CreateFolder...
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.storage.control.v2.StorageControl.CreateFolder
+    #             # method settings for CreateFolder...
     # @!attribute [rw] long_running
     #   @return [::Google::Api::MethodSettings::LongRunning]
     #     Describes settings to use for long-running operations when generating
@@ -356,14 +373,14 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration::
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.cloud.speech.v2.Speech.BatchRecognize
-    #            long_running:
-    #              initial_poll_delay: 60s # 1 minute
-    #              poll_delay_multiplier: 1.5
-    #              max_poll_delay: 360s # 6 minutes
-    #              total_poll_timeout: 54000s # 90 minutes
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.cloud.speech.v2.Speech.BatchRecognize
+    #             long_running:
+    #               initial_poll_delay: 60s # 1 minute
+    #               poll_delay_multiplier: 1.5
+    #               max_poll_delay: 360s # 6 minutes
+    #               total_poll_timeout: 54000s # 90 minutes
     # @!attribute [rw] auto_populated_fields
     #   @return [::Array<::String>]
     #     List of top-level fields of the request message, that should be
@@ -372,11 +389,24 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.example.v1.ExampleService.CreateExample
-    #            auto_populated_fields:
-    #            - request_id
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.CreateExample
+    #             auto_populated_fields:
+    #             - request_id
+    # @!attribute [rw] batching
+    #   @return [::Google::Api::BatchingConfigProto]
+    #     Batching configuration for an API method in client libraries.
+    #
+    #     Example of a YAML configuration:
+    #
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.BatchCreateExample
+    #             batching:
+    #               element_count_threshold: 1000
+    #               request_byte_threshold: 100000000
+    #               delay_threshold_millis: 10
     class MethodSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -428,6 +458,77 @@ class SelectiveGapicGeneration
       extend ::Google::Protobuf::MessageExts::ClassMethods
     end
 
+    # `BatchingConfigProto` defines the batching configuration for an API method.
+    # @!attribute [rw] thresholds
+    #   @return [::Google::Api::BatchingSettingsProto]
+    #     The thresholds which trigger a batched request to be sent.
+    # @!attribute [rw] batch_descriptor
+    #   @return [::Google::Api::BatchingDescriptorProto]
+    #     The request and response fields used in batching.
+    class BatchingConfigProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingSettingsProto` specifies a set of batching thresholds, each of
+    # which acts as a trigger to send a batch of messages as a request. At least
+    # one threshold must be positive nonzero.
+    # @!attribute [rw] element_count_threshold
+    #   @return [::Integer]
+    #     The number of elements of a field collected into a batch which, if
+    #     exceeded, causes the batch to be sent.
+    # @!attribute [rw] request_byte_threshold
+    #   @return [::Integer]
+    #     The aggregated size of the batched field which, if exceeded, causes the
+    #     batch to be sent. This size is computed by aggregating the sizes of the
+    #     request field to be batched, not of the entire request message.
+    # @!attribute [rw] delay_threshold
+    #   @return [::Google::Protobuf::Duration]
+    #     The duration after which a batch should be sent, starting from the addition
+    #     of the first message to that batch.
+    # @!attribute [rw] element_count_limit
+    #   @return [::Integer]
+    #     The maximum number of elements collected in a batch that could be accepted
+    #     by server.
+    # @!attribute [rw] request_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of the request that could be accepted by server.
+    # @!attribute [rw] flow_control_element_limit
+    #   @return [::Integer]
+    #     The maximum number of elements allowed by flow control.
+    # @!attribute [rw] flow_control_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of data allowed by flow control.
+    # @!attribute [rw] flow_control_limit_exceeded_behavior
+    #   @return [::Google::Api::FlowControlLimitExceededBehaviorProto]
+    #     The behavior to take when the flow control limit is exceeded.
+    class BatchingSettingsProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingDescriptorProto` specifies the fields of the request message to be
+    # used for batching, and, optionally, the fields of the response message to be
+    # used for demultiplexing.
+    # @!attribute [rw] batched_field
+    #   @return [::String]
+    #     The repeated field in the request message to be aggregated by batching.
+    # @!attribute [rw] discriminator_fields
+    #   @return [::Array<::String>]
+    #     A list of the fields in the request message. Two requests will be batched
+    #     together only if the values of every field specified in
+    #     `request_discriminator_fields` is equal between the two requests.
+    # @!attribute [rw] subresponse_field
+    #   @return [::String]
+    #     Optional. When present, indicates the field in the response message to be
+    #     used to demultiplex the response into multiple response messages, in
+    #     correspondence with the multiple request messages originally batched
+    #     together.
+    class BatchingDescriptorProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
     # The organization for which the client libraries are being published.
     # Affects the url where generated docs are published, etc.
     module ClientLibraryOrganization
@@ -469,5 +570,20 @@ module ClientLibraryDestination
       # Publish the library to package managers like nuget.org and npmjs.com.
       PACKAGE_MANAGER = 20
     end
+
+    # The behavior to take when the flow control limit is exceeded.
+    module FlowControlLimitExceededBehaviorProto
+      # Default behavior, system-defined.
+      UNSET_BEHAVIOR = 0
+
+      # Stop operation, raise error.
+      THROW_EXCEPTION = 1
+
+      # Pause operation until limit clears.
+      BLOCK = 2
+
+      # Continue operation, disregard limit.
+      IGNORE = 3
+    end
   end
 end
diff --git a/google-shopping-merchant-order_tracking-v1/proto_docs/google/type/datetime.rb b/google-shopping-merchant-order_tracking-v1/proto_docs/google/type/datetime.rb
index 3b045eb0b7d8..7095a93bdce1 100644
--- a/google-shopping-merchant-order_tracking-v1/proto_docs/google/type/datetime.rb
+++ b/google-shopping-merchant-order_tracking-v1/proto_docs/google/type/datetime.rb
@@ -32,8 +32,8 @@ module Type
     #
     # The date is relative to the Proleptic Gregorian Calendar.
     #
-    # If year is 0, the DateTime is considered not to have a specific year. month
-    # and day must have valid, non-zero values.
+    # If year, month, or day are 0, the DateTime is considered not to have a
+    # specific year, month, or day respectively.
     #
     # This type may also be used to represent a physical time if all the date and
     # time fields are set and either case of the `time_offset` oneof is set.
@@ -49,27 +49,28 @@ module Type
     #     datetime without a year.
     # @!attribute [rw] month
     #   @return [::Integer]
-    #     Required. Month of year. Must be from 1 to 12.
+    #     Optional. Month of year. Must be from 1 to 12, or 0 if specifying a
+    #     datetime without a month.
     # @!attribute [rw] day
     #   @return [::Integer]
-    #     Required. Day of month. Must be from 1 to 31 and valid for the year and
-    #     month.
+    #     Optional. Day of month. Must be from 1 to 31 and valid for the year and
+    #     month, or 0 if specifying a datetime without a day.
     # @!attribute [rw] hours
     #   @return [::Integer]
-    #     Required. Hours of day in 24 hour format. Should be from 0 to 23. An API
-    #     may choose to allow the value "24:00:00" for scenarios like business
-    #     closing time.
+    #     Optional. Hours of day in 24 hour format. Should be from 0 to 23, defaults
+    #     to 0 (midnight). An API may choose to allow the value "24:00:00" for
+    #     scenarios like business closing time.
     # @!attribute [rw] minutes
     #   @return [::Integer]
-    #     Required. Minutes of hour of day. Must be from 0 to 59.
+    #     Optional. Minutes of hour of day. Must be from 0 to 59, defaults to 0.
     # @!attribute [rw] seconds
     #   @return [::Integer]
-    #     Required. Seconds of minutes of the time. Must normally be from 0 to 59. An
-    #     API may allow the value 60 if it allows leap-seconds.
+    #     Optional. Seconds of minutes of the time. Must normally be from 0 to 59,
+    #     defaults to 0. An API may allow the value 60 if it allows leap-seconds.
     # @!attribute [rw] nanos
     #   @return [::Integer]
-    #     Required. Fractions of seconds in nanoseconds. Must be from 0 to
-    #     999,999,999.
+    #     Optional. Fractions of seconds in nanoseconds. Must be from 0 to
+    #     999,999,999, defaults to 0.
     # @!attribute [rw] utc_offset
     #   @return [::Google::Protobuf::Duration]
     #     UTC offset. Must be whole seconds, between -18 hours and +18 hours.
@@ -91,10 +92,10 @@ class DateTime
     # [IANA Time Zone Database](https://www.iana.org/time-zones).
     # @!attribute [rw] id
     #   @return [::String]
-    #     IANA Time Zone Database time zone, e.g. "America/New_York".
+    #     IANA Time Zone Database time zone. For example "America/New_York".
     # @!attribute [rw] version
     #   @return [::String]
-    #     Optional. IANA Time Zone Database version number, e.g. "2019a".
+    #     Optional. IANA Time Zone Database version number. For example "2019a".
     class TimeZone
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
diff --git a/google-shopping-merchant-order_tracking-v1beta/proto_docs/google/api/client.rb b/google-shopping-merchant-order_tracking-v1beta/proto_docs/google/api/client.rb
index c6b6b60729c9..25b227e61cdc 100644
--- a/google-shopping-merchant-order_tracking-v1beta/proto_docs/google/api/client.rb
+++ b/google-shopping-merchant-order_tracking-v1beta/proto_docs/google/api/client.rb
@@ -141,9 +141,10 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          library_package: com.google.cloud.pubsub.v1
+    #         publishing:
+    #           library_settings:
+    #             java_settings:
+    #               library_package: com.google.cloud.pubsub.v1
     # @!attribute [rw] service_class_names
     #   @return [::Google::Protobuf::Map{::String => ::String}]
     #     Configure the Java class name to use instead of the service's for its
@@ -155,11 +156,11 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          service_class_names:
-    #            - google.pubsub.v1.Publisher: TopicAdmin
-    #            - google.pubsub.v1.Subscriber: SubscriptionAdmin
+    #         publishing:
+    #           java_settings:
+    #             service_class_names:
+    #               - google.pubsub.v1.Publisher: TopicAdmin
+    #               - google.pubsub.v1.Subscriber: SubscriptionAdmin
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
@@ -190,6 +191,20 @@ class CppSettings
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
+    # @!attribute [rw] library_package
+    #   @return [::String]
+    #     The package name to use in Php. Clobbers the php_namespace option
+    #     set in the protobuf. This should be used **only** by APIs
+    #     who have already set the language_settings.php.package_name" field
+    #     in gapic.yaml. API teams should use the protobuf php_namespace option
+    #     where possible.
+    #
+    #     Example of a YAML configuration::
+    #
+    #         publishing:
+    #           library_settings:
+    #             php_settings:
+    #               library_package: Google\Cloud\PubSub\V1
     class PhpSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -318,10 +333,12 @@ class RubySettings
     #     service names and values are the name to be used for the service client
     #     and call options.
     #
-    #     publishing:
-    #       go_settings:
-    #         renamed_services:
-    #           Publisher: TopicAdmin
+    #     Example:
+    #
+    #         publishing:
+    #           go_settings:
+    #             renamed_services:
+    #               Publisher: TopicAdmin
     class GoSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -344,10 +361,10 @@ class RenamedServicesEntry
     #
     #     Example:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.storage.control.v2.StorageControl.CreateFolder
-    #            # method settings for CreateFolder...
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.storage.control.v2.StorageControl.CreateFolder
+    #             # method settings for CreateFolder...
     # @!attribute [rw] long_running
     #   @return [::Google::Api::MethodSettings::LongRunning]
     #     Describes settings to use for long-running operations when generating
@@ -356,14 +373,14 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration::
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.cloud.speech.v2.Speech.BatchRecognize
-    #            long_running:
-    #              initial_poll_delay: 60s # 1 minute
-    #              poll_delay_multiplier: 1.5
-    #              max_poll_delay: 360s # 6 minutes
-    #              total_poll_timeout: 54000s # 90 minutes
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.cloud.speech.v2.Speech.BatchRecognize
+    #             long_running:
+    #               initial_poll_delay: 60s # 1 minute
+    #               poll_delay_multiplier: 1.5
+    #               max_poll_delay: 360s # 6 minutes
+    #               total_poll_timeout: 54000s # 90 minutes
     # @!attribute [rw] auto_populated_fields
     #   @return [::Array<::String>]
     #     List of top-level fields of the request message, that should be
@@ -372,11 +389,24 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.example.v1.ExampleService.CreateExample
-    #            auto_populated_fields:
-    #            - request_id
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.CreateExample
+    #             auto_populated_fields:
+    #             - request_id
+    # @!attribute [rw] batching
+    #   @return [::Google::Api::BatchingConfigProto]
+    #     Batching configuration for an API method in client libraries.
+    #
+    #     Example of a YAML configuration:
+    #
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.BatchCreateExample
+    #             batching:
+    #               element_count_threshold: 1000
+    #               request_byte_threshold: 100000000
+    #               delay_threshold_millis: 10
     class MethodSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -428,6 +458,77 @@ class SelectiveGapicGeneration
       extend ::Google::Protobuf::MessageExts::ClassMethods
     end
 
+    # `BatchingConfigProto` defines the batching configuration for an API method.
+    # @!attribute [rw] thresholds
+    #   @return [::Google::Api::BatchingSettingsProto]
+    #     The thresholds which trigger a batched request to be sent.
+    # @!attribute [rw] batch_descriptor
+    #   @return [::Google::Api::BatchingDescriptorProto]
+    #     The request and response fields used in batching.
+    class BatchingConfigProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingSettingsProto` specifies a set of batching thresholds, each of
+    # which acts as a trigger to send a batch of messages as a request. At least
+    # one threshold must be positive nonzero.
+    # @!attribute [rw] element_count_threshold
+    #   @return [::Integer]
+    #     The number of elements of a field collected into a batch which, if
+    #     exceeded, causes the batch to be sent.
+    # @!attribute [rw] request_byte_threshold
+    #   @return [::Integer]
+    #     The aggregated size of the batched field which, if exceeded, causes the
+    #     batch to be sent. This size is computed by aggregating the sizes of the
+    #     request field to be batched, not of the entire request message.
+    # @!attribute [rw] delay_threshold
+    #   @return [::Google::Protobuf::Duration]
+    #     The duration after which a batch should be sent, starting from the addition
+    #     of the first message to that batch.
+    # @!attribute [rw] element_count_limit
+    #   @return [::Integer]
+    #     The maximum number of elements collected in a batch that could be accepted
+    #     by server.
+    # @!attribute [rw] request_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of the request that could be accepted by server.
+    # @!attribute [rw] flow_control_element_limit
+    #   @return [::Integer]
+    #     The maximum number of elements allowed by flow control.
+    # @!attribute [rw] flow_control_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of data allowed by flow control.
+    # @!attribute [rw] flow_control_limit_exceeded_behavior
+    #   @return [::Google::Api::FlowControlLimitExceededBehaviorProto]
+    #     The behavior to take when the flow control limit is exceeded.
+    class BatchingSettingsProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingDescriptorProto` specifies the fields of the request message to be
+    # used for batching, and, optionally, the fields of the response message to be
+    # used for demultiplexing.
+    # @!attribute [rw] batched_field
+    #   @return [::String]
+    #     The repeated field in the request message to be aggregated by batching.
+    # @!attribute [rw] discriminator_fields
+    #   @return [::Array<::String>]
+    #     A list of the fields in the request message. Two requests will be batched
+    #     together only if the values of every field specified in
+    #     `request_discriminator_fields` is equal between the two requests.
+    # @!attribute [rw] subresponse_field
+    #   @return [::String]
+    #     Optional. When present, indicates the field in the response message to be
+    #     used to demultiplex the response into multiple response messages, in
+    #     correspondence with the multiple request messages originally batched
+    #     together.
+    class BatchingDescriptorProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
     # The organization for which the client libraries are being published.
     # Affects the url where generated docs are published, etc.
     module ClientLibraryOrganization
@@ -469,5 +570,20 @@ module ClientLibraryDestination
       # Publish the library to package managers like nuget.org and npmjs.com.
       PACKAGE_MANAGER = 20
     end
+
+    # The behavior to take when the flow control limit is exceeded.
+    module FlowControlLimitExceededBehaviorProto
+      # Default behavior, system-defined.
+      UNSET_BEHAVIOR = 0
+
+      # Stop operation, raise error.
+      THROW_EXCEPTION = 1
+
+      # Pause operation until limit clears.
+      BLOCK = 2
+
+      # Continue operation, disregard limit.
+      IGNORE = 3
+    end
   end
 end
diff --git a/google-shopping-merchant-order_tracking-v1beta/proto_docs/google/type/datetime.rb b/google-shopping-merchant-order_tracking-v1beta/proto_docs/google/type/datetime.rb
index 3b045eb0b7d8..7095a93bdce1 100644
--- a/google-shopping-merchant-order_tracking-v1beta/proto_docs/google/type/datetime.rb
+++ b/google-shopping-merchant-order_tracking-v1beta/proto_docs/google/type/datetime.rb
@@ -32,8 +32,8 @@ module Type
     #
     # The date is relative to the Proleptic Gregorian Calendar.
     #
-    # If year is 0, the DateTime is considered not to have a specific year. month
-    # and day must have valid, non-zero values.
+    # If year, month, or day are 0, the DateTime is considered not to have a
+    # specific year, month, or day respectively.
     #
     # This type may also be used to represent a physical time if all the date and
     # time fields are set and either case of the `time_offset` oneof is set.
@@ -49,27 +49,28 @@ module Type
     #     datetime without a year.
     # @!attribute [rw] month
     #   @return [::Integer]
-    #     Required. Month of year. Must be from 1 to 12.
+    #     Optional. Month of year. Must be from 1 to 12, or 0 if specifying a
+    #     datetime without a month.
     # @!attribute [rw] day
     #   @return [::Integer]
-    #     Required. Day of month. Must be from 1 to 31 and valid for the year and
-    #     month.
+    #     Optional. Day of month. Must be from 1 to 31 and valid for the year and
+    #     month, or 0 if specifying a datetime without a day.
     # @!attribute [rw] hours
     #   @return [::Integer]
-    #     Required. Hours of day in 24 hour format. Should be from 0 to 23. An API
-    #     may choose to allow the value "24:00:00" for scenarios like business
-    #     closing time.
+    #     Optional. Hours of day in 24 hour format. Should be from 0 to 23, defaults
+    #     to 0 (midnight). An API may choose to allow the value "24:00:00" for
+    #     scenarios like business closing time.
     # @!attribute [rw] minutes
     #   @return [::Integer]
-    #     Required. Minutes of hour of day. Must be from 0 to 59.
+    #     Optional. Minutes of hour of day. Must be from 0 to 59, defaults to 0.
     # @!attribute [rw] seconds
     #   @return [::Integer]
-    #     Required. Seconds of minutes of the time. Must normally be from 0 to 59. An
-    #     API may allow the value 60 if it allows leap-seconds.
+    #     Optional. Seconds of minutes of the time. Must normally be from 0 to 59,
+    #     defaults to 0. An API may allow the value 60 if it allows leap-seconds.
     # @!attribute [rw] nanos
     #   @return [::Integer]
-    #     Required. Fractions of seconds in nanoseconds. Must be from 0 to
-    #     999,999,999.
+    #     Optional. Fractions of seconds in nanoseconds. Must be from 0 to
+    #     999,999,999, defaults to 0.
     # @!attribute [rw] utc_offset
     #   @return [::Google::Protobuf::Duration]
     #     UTC offset. Must be whole seconds, between -18 hours and +18 hours.
@@ -91,10 +92,10 @@ class DateTime
     # [IANA Time Zone Database](https://www.iana.org/time-zones).
     # @!attribute [rw] id
     #   @return [::String]
-    #     IANA Time Zone Database time zone, e.g. "America/New_York".
+    #     IANA Time Zone Database time zone. For example "America/New_York".
     # @!attribute [rw] version
     #   @return [::String]
-    #     Optional. IANA Time Zone Database version number, e.g. "2019a".
+    #     Optional. IANA Time Zone Database version number. For example "2019a".
     class TimeZone
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
diff --git a/google-shopping-merchant-reports-v1/proto_docs/google/api/client.rb b/google-shopping-merchant-reports-v1/proto_docs/google/api/client.rb
index c6b6b60729c9..25b227e61cdc 100644
--- a/google-shopping-merchant-reports-v1/proto_docs/google/api/client.rb
+++ b/google-shopping-merchant-reports-v1/proto_docs/google/api/client.rb
@@ -141,9 +141,10 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          library_package: com.google.cloud.pubsub.v1
+    #         publishing:
+    #           library_settings:
+    #             java_settings:
+    #               library_package: com.google.cloud.pubsub.v1
     # @!attribute [rw] service_class_names
     #   @return [::Google::Protobuf::Map{::String => ::String}]
     #     Configure the Java class name to use instead of the service's for its
@@ -155,11 +156,11 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          service_class_names:
-    #            - google.pubsub.v1.Publisher: TopicAdmin
-    #            - google.pubsub.v1.Subscriber: SubscriptionAdmin
+    #         publishing:
+    #           java_settings:
+    #             service_class_names:
+    #               - google.pubsub.v1.Publisher: TopicAdmin
+    #               - google.pubsub.v1.Subscriber: SubscriptionAdmin
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
@@ -190,6 +191,20 @@ class CppSettings
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
+    # @!attribute [rw] library_package
+    #   @return [::String]
+    #     The package name to use in Php. Clobbers the php_namespace option
+    #     set in the protobuf. This should be used **only** by APIs
+    #     who have already set the language_settings.php.package_name" field
+    #     in gapic.yaml. API teams should use the protobuf php_namespace option
+    #     where possible.
+    #
+    #     Example of a YAML configuration::
+    #
+    #         publishing:
+    #           library_settings:
+    #             php_settings:
+    #               library_package: Google\Cloud\PubSub\V1
     class PhpSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -318,10 +333,12 @@ class RubySettings
     #     service names and values are the name to be used for the service client
     #     and call options.
     #
-    #     publishing:
-    #       go_settings:
-    #         renamed_services:
-    #           Publisher: TopicAdmin
+    #     Example:
+    #
+    #         publishing:
+    #           go_settings:
+    #             renamed_services:
+    #               Publisher: TopicAdmin
     class GoSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -344,10 +361,10 @@ class RenamedServicesEntry
     #
     #     Example:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.storage.control.v2.StorageControl.CreateFolder
-    #            # method settings for CreateFolder...
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.storage.control.v2.StorageControl.CreateFolder
+    #             # method settings for CreateFolder...
     # @!attribute [rw] long_running
     #   @return [::Google::Api::MethodSettings::LongRunning]
     #     Describes settings to use for long-running operations when generating
@@ -356,14 +373,14 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration::
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.cloud.speech.v2.Speech.BatchRecognize
-    #            long_running:
-    #              initial_poll_delay: 60s # 1 minute
-    #              poll_delay_multiplier: 1.5
-    #              max_poll_delay: 360s # 6 minutes
-    #              total_poll_timeout: 54000s # 90 minutes
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.cloud.speech.v2.Speech.BatchRecognize
+    #             long_running:
+    #               initial_poll_delay: 60s # 1 minute
+    #               poll_delay_multiplier: 1.5
+    #               max_poll_delay: 360s # 6 minutes
+    #               total_poll_timeout: 54000s # 90 minutes
     # @!attribute [rw] auto_populated_fields
     #   @return [::Array<::String>]
     #     List of top-level fields of the request message, that should be
@@ -372,11 +389,24 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.example.v1.ExampleService.CreateExample
-    #            auto_populated_fields:
-    #            - request_id
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.CreateExample
+    #             auto_populated_fields:
+    #             - request_id
+    # @!attribute [rw] batching
+    #   @return [::Google::Api::BatchingConfigProto]
+    #     Batching configuration for an API method in client libraries.
+    #
+    #     Example of a YAML configuration:
+    #
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.BatchCreateExample
+    #             batching:
+    #               element_count_threshold: 1000
+    #               request_byte_threshold: 100000000
+    #               delay_threshold_millis: 10
     class MethodSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -428,6 +458,77 @@ class SelectiveGapicGeneration
       extend ::Google::Protobuf::MessageExts::ClassMethods
     end
 
+    # `BatchingConfigProto` defines the batching configuration for an API method.
+    # @!attribute [rw] thresholds
+    #   @return [::Google::Api::BatchingSettingsProto]
+    #     The thresholds which trigger a batched request to be sent.
+    # @!attribute [rw] batch_descriptor
+    #   @return [::Google::Api::BatchingDescriptorProto]
+    #     The request and response fields used in batching.
+    class BatchingConfigProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingSettingsProto` specifies a set of batching thresholds, each of
+    # which acts as a trigger to send a batch of messages as a request. At least
+    # one threshold must be positive nonzero.
+    # @!attribute [rw] element_count_threshold
+    #   @return [::Integer]
+    #     The number of elements of a field collected into a batch which, if
+    #     exceeded, causes the batch to be sent.
+    # @!attribute [rw] request_byte_threshold
+    #   @return [::Integer]
+    #     The aggregated size of the batched field which, if exceeded, causes the
+    #     batch to be sent. This size is computed by aggregating the sizes of the
+    #     request field to be batched, not of the entire request message.
+    # @!attribute [rw] delay_threshold
+    #   @return [::Google::Protobuf::Duration]
+    #     The duration after which a batch should be sent, starting from the addition
+    #     of the first message to that batch.
+    # @!attribute [rw] element_count_limit
+    #   @return [::Integer]
+    #     The maximum number of elements collected in a batch that could be accepted
+    #     by server.
+    # @!attribute [rw] request_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of the request that could be accepted by server.
+    # @!attribute [rw] flow_control_element_limit
+    #   @return [::Integer]
+    #     The maximum number of elements allowed by flow control.
+    # @!attribute [rw] flow_control_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of data allowed by flow control.
+    # @!attribute [rw] flow_control_limit_exceeded_behavior
+    #   @return [::Google::Api::FlowControlLimitExceededBehaviorProto]
+    #     The behavior to take when the flow control limit is exceeded.
+    class BatchingSettingsProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingDescriptorProto` specifies the fields of the request message to be
+    # used for batching, and, optionally, the fields of the response message to be
+    # used for demultiplexing.
+    # @!attribute [rw] batched_field
+    #   @return [::String]
+    #     The repeated field in the request message to be aggregated by batching.
+    # @!attribute [rw] discriminator_fields
+    #   @return [::Array<::String>]
+    #     A list of the fields in the request message. Two requests will be batched
+    #     together only if the values of every field specified in
+    #     `request_discriminator_fields` is equal between the two requests.
+    # @!attribute [rw] subresponse_field
+    #   @return [::String]
+    #     Optional. When present, indicates the field in the response message to be
+    #     used to demultiplex the response into multiple response messages, in
+    #     correspondence with the multiple request messages originally batched
+    #     together.
+    class BatchingDescriptorProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
     # The organization for which the client libraries are being published.
     # Affects the url where generated docs are published, etc.
     module ClientLibraryOrganization
@@ -469,5 +570,20 @@ module ClientLibraryDestination
       # Publish the library to package managers like nuget.org and npmjs.com.
       PACKAGE_MANAGER = 20
     end
+
+    # The behavior to take when the flow control limit is exceeded.
+    module FlowControlLimitExceededBehaviorProto
+      # Default behavior, system-defined.
+      UNSET_BEHAVIOR = 0
+
+      # Stop operation, raise error.
+      THROW_EXCEPTION = 1
+
+      # Pause operation until limit clears.
+      BLOCK = 2
+
+      # Continue operation, disregard limit.
+      IGNORE = 3
+    end
   end
 end
diff --git a/google-shopping-merchant-reports-v1/proto_docs/google/type/date.rb b/google-shopping-merchant-reports-v1/proto_docs/google/type/date.rb
index 48f5db726fe4..3c5295270b8b 100644
--- a/google-shopping-merchant-reports-v1/proto_docs/google/type/date.rb
+++ b/google-shopping-merchant-reports-v1/proto_docs/google/type/date.rb
@@ -24,14 +24,17 @@ module Type
     # date is relative to the Gregorian Calendar. This can represent one of the
     # following:
     #
-    # * A full date, with non-zero year, month, and day values
-    # * A month and day value, with a zero year, such as an anniversary
-    # * A year on its own, with zero month and day values
-    # * A year and month value, with a zero day, such as a credit card expiration
-    # date
+    # * A full date, with non-zero year, month, and day values.
+    # * A month and day, with a zero year (for example, an anniversary).
+    # * A year on its own, with a zero month and a zero day.
+    # * A year and month, with a zero day (for example, a credit card expiration
+    #   date).
     #
-    # Related types are [google.type.TimeOfDay][google.type.TimeOfDay] and
-    # `google.protobuf.Timestamp`.
+    # Related types:
+    #
+    # * [google.type.TimeOfDay][google.type.TimeOfDay]
+    # * [google.type.DateTime][google.type.DateTime]
+    # * {::Google::Protobuf::Timestamp google.protobuf.Timestamp}
     # @!attribute [rw] year
     #   @return [::Integer]
     #     Year of the date. Must be from 1 to 9999, or 0 to specify a date without
diff --git a/google-shopping-merchant-reports-v1beta/proto_docs/google/api/client.rb b/google-shopping-merchant-reports-v1beta/proto_docs/google/api/client.rb
index 44c6bee7f2e5..97193034f37c 100644
--- a/google-shopping-merchant-reports-v1beta/proto_docs/google/api/client.rb
+++ b/google-shopping-merchant-reports-v1beta/proto_docs/google/api/client.rb
@@ -141,9 +141,10 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          library_package: com.google.cloud.pubsub.v1
+    #         publishing:
+    #           library_settings:
+    #             java_settings:
+    #               library_package: com.google.cloud.pubsub.v1
     # @!attribute [rw] service_class_names
     #   @return [::Google::Protobuf::Map{::String => ::String}]
     #     Configure the Java class name to use instead of the service's for its
@@ -155,11 +156,11 @@ class Publishing
     #
     #     Example of a YAML configuration::
     #
-    #      publishing:
-    #        java_settings:
-    #          service_class_names:
-    #            - google.pubsub.v1.Publisher: TopicAdmin
-    #            - google.pubsub.v1.Subscriber: SubscriptionAdmin
+    #         publishing:
+    #           java_settings:
+    #             service_class_names:
+    #               - google.pubsub.v1.Publisher: TopicAdmin
+    #               - google.pubsub.v1.Subscriber: SubscriptionAdmin
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
@@ -190,6 +191,20 @@ class CppSettings
     # @!attribute [rw] common
     #   @return [::Google::Api::CommonLanguageSettings]
     #     Some settings.
+    # @!attribute [rw] library_package
+    #   @return [::String]
+    #     The package name to use in Php. Clobbers the php_namespace option
+    #     set in the protobuf. This should be used **only** by APIs
+    #     who have already set the language_settings.php.package_name" field
+    #     in gapic.yaml. API teams should use the protobuf php_namespace option
+    #     where possible.
+    #
+    #     Example of a YAML configuration::
+    #
+    #         publishing:
+    #           library_settings:
+    #             php_settings:
+    #               library_package: Google\Cloud\PubSub\V1
     class PhpSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -318,10 +333,12 @@ class RubySettings
     #     service names and values are the name to be used for the service client
     #     and call options.
     #
-    #     publishing:
-    #       go_settings:
-    #         renamed_services:
-    #           Publisher: TopicAdmin
+    #     Example:
+    #
+    #         publishing:
+    #           go_settings:
+    #             renamed_services:
+    #               Publisher: TopicAdmin
     class GoSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -344,10 +361,10 @@ class RenamedServicesEntry
     #
     #     Example:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.storage.control.v2.StorageControl.CreateFolder
-    #            # method settings for CreateFolder...
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.storage.control.v2.StorageControl.CreateFolder
+    #             # method settings for CreateFolder...
     # @!attribute [rw] long_running
     #   @return [::Google::Api::MethodSettings::LongRunning]
     #     Describes settings to use for long-running operations when generating
@@ -356,14 +373,14 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration::
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.cloud.speech.v2.Speech.BatchRecognize
-    #            long_running:
-    #              initial_poll_delay: 60s # 1 minute
-    #              poll_delay_multiplier: 1.5
-    #              max_poll_delay: 360s # 6 minutes
-    #              total_poll_timeout: 54000s # 90 minutes
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.cloud.speech.v2.Speech.BatchRecognize
+    #             long_running:
+    #               initial_poll_delay: 60s # 1 minute
+    #               poll_delay_multiplier: 1.5
+    #               max_poll_delay: 360s # 6 minutes
+    #               total_poll_timeout: 54000s # 90 minutes
     # @!attribute [rw] auto_populated_fields
     #   @return [::Array<::String>]
     #     List of top-level fields of the request message, that should be
@@ -372,11 +389,24 @@ class RenamedServicesEntry
     #
     #     Example of a YAML configuration:
     #
-    #        publishing:
-    #          method_settings:
-    #          - selector: google.example.v1.ExampleService.CreateExample
-    #            auto_populated_fields:
-    #            - request_id
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.CreateExample
+    #             auto_populated_fields:
+    #             - request_id
+    # @!attribute [rw] batching
+    #   @return [::Google::Api::BatchingConfigProto]
+    #     Batching configuration for an API method in client libraries.
+    #
+    #     Example of a YAML configuration:
+    #
+    #         publishing:
+    #           method_settings:
+    #           - selector: google.example.v1.ExampleService.BatchCreateExample
+    #             batching:
+    #               element_count_threshold: 1000
+    #               request_byte_threshold: 100000000
+    #               delay_threshold_millis: 10
     class MethodSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -428,6 +458,77 @@ class SelectiveGapicGeneration
       extend ::Google::Protobuf::MessageExts::ClassMethods
     end
 
+    # `BatchingConfigProto` defines the batching configuration for an API method.
+    # @!attribute [rw] thresholds
+    #   @return [::Google::Api::BatchingSettingsProto]
+    #     The thresholds which trigger a batched request to be sent.
+    # @!attribute [rw] batch_descriptor
+    #   @return [::Google::Api::BatchingDescriptorProto]
+    #     The request and response fields used in batching.
+    class BatchingConfigProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingSettingsProto` specifies a set of batching thresholds, each of
+    # which acts as a trigger to send a batch of messages as a request. At least
+    # one threshold must be positive nonzero.
+    # @!attribute [rw] element_count_threshold
+    #   @return [::Integer]
+    #     The number of elements of a field collected into a batch which, if
+    #     exceeded, causes the batch to be sent.
+    # @!attribute [rw] request_byte_threshold
+    #   @return [::Integer]
+    #     The aggregated size of the batched field which, if exceeded, causes the
+    #     batch to be sent. This size is computed by aggregating the sizes of the
+    #     request field to be batched, not of the entire request message.
+    # @!attribute [rw] delay_threshold
+    #   @return [::Google::Protobuf::Duration]
+    #     The duration after which a batch should be sent, starting from the addition
+    #     of the first message to that batch.
+    # @!attribute [rw] element_count_limit
+    #   @return [::Integer]
+    #     The maximum number of elements collected in a batch that could be accepted
+    #     by server.
+    # @!attribute [rw] request_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of the request that could be accepted by server.
+    # @!attribute [rw] flow_control_element_limit
+    #   @return [::Integer]
+    #     The maximum number of elements allowed by flow control.
+    # @!attribute [rw] flow_control_byte_limit
+    #   @return [::Integer]
+    #     The maximum size of data allowed by flow control.
+    # @!attribute [rw] flow_control_limit_exceeded_behavior
+    #   @return [::Google::Api::FlowControlLimitExceededBehaviorProto]
+    #     The behavior to take when the flow control limit is exceeded.
+    class BatchingSettingsProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
+    # `BatchingDescriptorProto` specifies the fields of the request message to be
+    # used for batching, and, optionally, the fields of the response message to be
+    # used for demultiplexing.
+    # @!attribute [rw] batched_field
+    #   @return [::String]
+    #     The repeated field in the request message to be aggregated by batching.
+    # @!attribute [rw] discriminator_fields
+    #   @return [::Array<::String>]
+    #     A list of the fields in the request message. Two requests will be batched
+    #     together only if the values of every field specified in
+    #     `request_discriminator_fields` is equal between the two requests.
+    # @!attribute [rw] subresponse_field
+    #   @return [::String]
+    #     Optional. When present, indicates the field in the response message to be
+    #     used to demultiplex the response into multiple response messages, in
+    #     correspondence with the multiple request messages originally batched
+    #     together.
+    class BatchingDescriptorProto
+      include ::Google::Protobuf::MessageExts
+      extend ::Google::Protobuf::MessageExts::ClassMethods
+    end
+
     # The organization for which the client libraries are being published.
     # Affects the url where generated docs are published, etc.
     module ClientLibraryOrganization
@@ -469,5 +570,20 @@ module ClientLibraryDestination
       # Publish the library to package managers like nuget.org and npmjs.com.
       PACKAGE_MANAGER = 20
     end
+
+    # The behavior to take when the flow control limit is exceeded.
+    module FlowControlLimitExceededBehaviorProto
+      # Default behavior, system-defined.
+      UNSET_BEHAVIOR = 0
+
+      # Stop operation, raise error.
+      THROW_EXCEPTION = 1
+
+      # Pause operation until limit clears.
+      BLOCK = 2
+
+      # Continue operation, disregard limit.
+      IGNORE = 3
+    end
   end
 end
diff --git a/google-shopping-merchant-reports-v1beta/proto_docs/google/type/date.rb b/google-shopping-merchant-reports-v1beta/proto_docs/google/type/date.rb
index 086a71b4869a..9478ba127d58 100644
--- a/google-shopping-merchant-reports-v1beta/proto_docs/google/type/date.rb
+++ b/google-shopping-merchant-reports-v1beta/proto_docs/google/type/date.rb
@@ -24,14 +24,17 @@ module Type
     # date is relative to the Gregorian Calendar. This can represent one of the
     # following:
     #
-    # * A full date, with non-zero year, month, and day values
-    # * A month and day value, with a zero year, such as an anniversary
-    # * A year on its own, with zero month and day values
-    # * A year and month value, with a zero day, such as a credit card expiration
-    # date
+    # * A full date, with non-zero year, month, and day values.
+    # * A month and day, with a zero year (for example, an anniversary).
+    # * A year on its own, with a zero month and a zero day.
+    # * A year and month, with a zero day (for example, a credit card expiration
+    #   date).
     #
-    # Related types are [google.type.TimeOfDay][google.type.TimeOfDay] and
-    # `google.protobuf.Timestamp`.
+    # Related types:
+    #
+    # * [google.type.TimeOfDay][google.type.TimeOfDay]
+    # * [google.type.DateTime][google.type.DateTime]
+    # * {::Google::Protobuf::Timestamp google.protobuf.Timestamp}
     # @!attribute [rw] year
     #   @return [::Integer]
     #     Year of the date. Must be from 1 to 9999, or 0 to specify a date without