diff --git a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document.proto b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document.proto
index c4fbb21ceca..680cf88282f 100644
--- a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document.proto
+++ b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document.proto
@@ -50,7 +50,8 @@ message Document {
     // Total number of shards.
     int64 shard_count = 2;
 
-    // The index of the first character in [Document.text][google.cloud.documentai.v1.Document.text] in the overall
+    // The index of the first character in
+    // [Document.text][google.cloud.documentai.v1.Document.text] in the overall
     // document global text.
     int64 text_offset = 3;
   }
@@ -67,7 +68,8 @@ message Document {
       string unit = 2;
     }
 
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1.Document.text].
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1.Document.text].
     TextAnchor text_anchor = 1;
 
     // Text color.
@@ -168,25 +170,31 @@ message Document {
         PAGE_LEFT = 4;
       }
 
-      // Text anchor indexing into the [Document.text][google.cloud.documentai.v1.Document.text].
+      // Text anchor indexing into the
+      // [Document.text][google.cloud.documentai.v1.Document.text].
       TextAnchor text_anchor = 1;
 
-      // Confidence of the current [Layout][google.cloud.documentai.v1.Document.Page.Layout] within context of the object this
-      // layout is for. e.g. confidence can be for a single token, a table,
-      // a visual element, etc. depending on context. Range `[0, 1]`.
+      // Confidence of the current
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] within
+      // context of the object this layout is for. e.g. confidence can be for a
+      // single token, a table, a visual element, etc. depending on context.
+      // Range `[0, 1]`.
       float confidence = 2;
 
-      // The bounding polygon for the [Layout][google.cloud.documentai.v1.Document.Page.Layout].
+      // The bounding polygon for the
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout].
       BoundingPoly bounding_poly = 3;
 
-      // Detected orientation for the [Layout][google.cloud.documentai.v1.Document.Page.Layout].
+      // Detected orientation for the
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout].
       Orientation orientation = 4;
     }
 
     // A block has a set of lines (collected into paragraphs) that have a
     // common line-spacing and orientation.
     message Block {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Block][google.cloud.documentai.v1.Document.Page.Block].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Block][google.cloud.documentai.v1.Document.Page.Block].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -198,7 +206,8 @@ message Document {
 
     // A collection of lines that a human would perceive as a paragraph.
     message Paragraph {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1.Document.Page.Paragraph].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Paragraph][google.cloud.documentai.v1.Document.Page.Paragraph].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -211,7 +220,8 @@ message Document {
     // A collection of tokens that a human would perceive as a line.
     // Does not cross column boundaries, can be horizontal, vertical, etc.
     message Line {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Line][google.cloud.documentai.v1.Document.Page.Line].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Line][google.cloud.documentai.v1.Document.Page.Line].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -223,7 +233,8 @@ message Document {
 
     // A detected token.
     message Token {
-      // Detected break at the end of a [Token][google.cloud.documentai.v1.Document.Page.Token].
+      // Detected break at the end of a
+      // [Token][google.cloud.documentai.v1.Document.Page.Token].
       message DetectedBreak {
         // Enum to denote the type of break found.
         enum Type {
@@ -244,10 +255,12 @@ message Document {
         Type type = 1;
       }
 
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Token][google.cloud.documentai.v1.Document.Page.Token].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Token][google.cloud.documentai.v1.Document.Page.Token].
       Layout layout = 1;
 
-      // Detected break at the end of a [Token][google.cloud.documentai.v1.Document.Page.Token].
+      // Detected break at the end of a
+      // [Token][google.cloud.documentai.v1.Document.Page.Token].
       DetectedBreak detected_break = 2;
 
       // A list of detected languages together with confidence.
@@ -259,7 +272,8 @@ message Document {
 
     // A detected symbol.
     message Symbol {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Symbol][google.cloud.documentai.v1.Document.Page.Symbol].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Symbol][google.cloud.documentai.v1.Document.Page.Symbol].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -269,10 +283,12 @@ message Document {
     // Detected non-text visual elements e.g. checkbox, signature etc. on the
     // page.
     message VisualElement {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1.Document.Page.VisualElement].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [VisualElement][google.cloud.documentai.v1.Document.Page.VisualElement].
       Layout layout = 1;
 
-      // Type of the [VisualElement][google.cloud.documentai.v1.Document.Page.VisualElement].
+      // Type of the
+      // [VisualElement][google.cloud.documentai.v1.Document.Page.VisualElement].
       string type = 2;
 
       // A list of detected languages together with confidence.
@@ -289,7 +305,8 @@ message Document {
 
       // A cell representation inside the table.
       message TableCell {
-        // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1.Document.Page.Table.TableCell].
+        // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+        // [TableCell][google.cloud.documentai.v1.Document.Page.Table.TableCell].
         Layout layout = 1;
 
         // How many rows this cell spans.
@@ -302,7 +319,8 @@ message Document {
         repeated DetectedLanguage detected_languages = 4;
       }
 
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Table][google.cloud.documentai.v1.Document.Page.Table].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Table][google.cloud.documentai.v1.Document.Page.Table].
       Layout layout = 1;
 
       // Header rows of the table.
@@ -320,11 +338,13 @@ message Document {
 
     // A form field detected on the page.
     message FormField {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1.Document.Page.FormField] name. e.g. `Address`, `Email`,
-      // `Grand total`, `Phone number`, etc.
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for the
+      // [FormField][google.cloud.documentai.v1.Document.Page.FormField] name.
+      // e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
       Layout field_name = 1;
 
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1.Document.Page.FormField] value.
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for the
+      // [FormField][google.cloud.documentai.v1.Document.Page.FormField] value.
       Layout field_value = 2;
 
       // A list of detected languages for name together with confidence.
@@ -335,9 +355,10 @@ message Document {
 
       // If the value is non-textual, this field represents the type. Current
       // valid values are:
-      // - blank (this indicates the field_value is normal text)
-      // - "unfilled_checkbox"
-      // - "filled_checkbox"
+      //
+      // - blank (this indicates the `field_value` is normal text)
+      // - `unfilled_checkbox`
+      // - `filled_checkbox`
       string value_type = 5;
 
       // Created for Labeling UI to export key text.
@@ -356,10 +377,12 @@ message Document {
 
     // A detected barcode.
     message DetectedBarcode {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [DetectedBarcode][google.cloud.documentai.v1.Document.Page.DetectedBarcode].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [DetectedBarcode][google.cloud.documentai.v1.Document.Page.DetectedBarcode].
       Layout layout = 1;
 
-      // Detailed barcode information of the [DetectedBarcode][google.cloud.documentai.v1.Document.Page.DetectedBarcode].
+      // Detailed barcode information of the
+      // [DetectedBarcode][google.cloud.documentai.v1.Document.Page.DetectedBarcode].
       Barcode barcode = 2;
     }
 
@@ -402,9 +425,11 @@ message Document {
       repeated DetectedDefect detected_defects = 2;
     }
 
-    // 1-based index for current [Page][google.cloud.documentai.v1.Document.Page] in a parent [Document][google.cloud.documentai.v1.Document].
-    // Useful when a page is taken out of a [Document][google.cloud.documentai.v1.Document] for individual
-    // processing.
+    // 1-based index for current
+    // [Page][google.cloud.documentai.v1.Document.Page] in a parent
+    // [Document][google.cloud.documentai.v1.Document]. Useful when a page is
+    // taken out of a [Document][google.cloud.documentai.v1.Document] for
+    // individual processing.
     int32 page_number = 1;
 
     // Rendered image for this page. This image is preprocessed to remove any
@@ -505,8 +530,8 @@ message Document {
       // Optional. An optional field to store a normalized string.
       // For some entity types, one of respective `structured_value` fields may
       // also be populated. Also not all the types of `structured_value` will be
-      // normalized. For example, some processors may not generate float
-      // or int normalized text by default.
+      // normalized. For example, some processors may not generate `float`
+      // or `integer` normalized text by default.
       //
       // Below are sample formats mapped to structured values.
       //
@@ -517,7 +542,8 @@ message Document {
     }
 
     // Optional. Provenance of the entity.
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1.Document.text].
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1.Document.text].
     TextAnchor text_anchor = 1 [(google.api.field_behavior) = OPTIONAL];
 
     // Required. Entity type from a schema e.g. `Address`.
@@ -532,32 +558,35 @@ message Document {
     // Optional. Confidence of detected Schema entity. Range `[0, 1]`.
     float confidence = 5 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Represents the provenance of this entity wrt. the location on the
-    // page where it was found.
+    // Optional. Represents the provenance of this entity wrt. the location on
+    // the page where it was found.
     PageAnchor page_anchor = 6 [(google.api.field_behavior) = OPTIONAL];
 
     // Optional. Canonical id. This will be a unique value in the entity list
     // for this document.
     string id = 7 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Normalized entity value. Absent if the extracted value could not be
-    // converted or the type (e.g. address) is not supported for certain
+    // Optional. Normalized entity value. Absent if the extracted value could
+    // not be converted or the type (e.g. address) is not supported for certain
     // parsers. This field is also only populated for certain supported document
     // types.
-    NormalizedValue normalized_value = 9 [(google.api.field_behavior) = OPTIONAL];
+    NormalizedValue normalized_value = 9
+        [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Entities can be nested to form a hierarchical data structure representing
-    // the content in the document.
+    // Optional. Entities can be nested to form a hierarchical data structure
+    // representing the content in the document.
     repeated Entity properties = 10 [(google.api.field_behavior) = OPTIONAL];
 
     // Optional. The history of this annotation.
     Provenance provenance = 11 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Whether the entity will be redacted for de-identification purposes.
+    // Optional. Whether the entity will be redacted for de-identification
+    // purposes.
     bool redacted = 12 [(google.api.field_behavior) = OPTIONAL];
   }
 
-  // Relationship between [Entities][google.cloud.documentai.v1.Document.Entity].
+  // Relationship between
+  // [Entities][google.cloud.documentai.v1.Document.Entity].
   message EntityRelation {
     // Subject entity id.
     string subject_id = 1;
@@ -569,21 +598,28 @@ message Document {
     string relation = 3;
   }
 
-  // Text reference indexing into the [Document.text][google.cloud.documentai.v1.Document.text].
+  // Text reference indexing into the
+  // [Document.text][google.cloud.documentai.v1.Document.text].
   message TextAnchor {
-    // A text segment in the [Document.text][google.cloud.documentai.v1.Document.text]. The indices may be out of bounds
-    // which indicate that the text extends into another document shard for
-    // large sharded documents. See [ShardInfo.text_offset][google.cloud.documentai.v1.Document.ShardInfo.text_offset]
+    // A text segment in the
+    // [Document.text][google.cloud.documentai.v1.Document.text]. The indices
+    // may be out of bounds which indicate that the text extends into another
+    // document shard for large sharded documents. See
+    // [ShardInfo.text_offset][google.cloud.documentai.v1.Document.ShardInfo.text_offset]
     message TextSegment {
-      // [TextSegment][google.cloud.documentai.v1.Document.TextAnchor.TextSegment] start UTF-8 char index in the [Document.text][google.cloud.documentai.v1.Document.text].
+      // [TextSegment][google.cloud.documentai.v1.Document.TextAnchor.TextSegment]
+      // start UTF-8 char index in the
+      // [Document.text][google.cloud.documentai.v1.Document.text].
       int64 start_index = 1;
 
-      // [TextSegment][google.cloud.documentai.v1.Document.TextAnchor.TextSegment] half open end UTF-8 char index in the
+      // [TextSegment][google.cloud.documentai.v1.Document.TextAnchor.TextSegment]
+      // half open end UTF-8 char index in the
       // [Document.text][google.cloud.documentai.v1.Document.text].
       int64 end_index = 2;
     }
 
-    // The text segments from the [Document.text][google.cloud.documentai.v1.Document.text].
+    // The text segments from the
+    // [Document.text][google.cloud.documentai.v1.Document.text].
     repeated TextSegment text_segments = 1;
 
     // Contains the content of the text span so that users do
@@ -592,9 +628,10 @@ message Document {
     string content = 2;
   }
 
-  // Referencing the visual context of the entity in the [Document.pages][google.cloud.documentai.v1.Document.pages].
-  // Page anchors can be cross-page, consist of multiple bounding polygons and
-  // optionally reference specific layout element types.
+  // Referencing the visual context of the entity in the
+  // [Document.pages][google.cloud.documentai.v1.Document.pages]. Page anchors
+  // can be cross-page, consist of multiple bounding polygons and optionally
+  // reference specific layout element types.
   message PageAnchor {
     // Represents a weak reference to a page element within a document.
     message PageRef {
@@ -603,47 +640,65 @@ message Document {
         // Layout Unspecified.
         LAYOUT_TYPE_UNSPECIFIED = 0;
 
-        // References a [Page.blocks][google.cloud.documentai.v1.Document.Page.blocks] element.
+        // References a
+        // [Page.blocks][google.cloud.documentai.v1.Document.Page.blocks]
+        // element.
         BLOCK = 1;
 
-        // References a [Page.paragraphs][google.cloud.documentai.v1.Document.Page.paragraphs] element.
+        // References a
+        // [Page.paragraphs][google.cloud.documentai.v1.Document.Page.paragraphs]
+        // element.
         PARAGRAPH = 2;
 
-        // References a [Page.lines][google.cloud.documentai.v1.Document.Page.lines] element.
+        // References a
+        // [Page.lines][google.cloud.documentai.v1.Document.Page.lines] element.
         LINE = 3;
 
-        // References a [Page.tokens][google.cloud.documentai.v1.Document.Page.tokens] element.
+        // References a
+        // [Page.tokens][google.cloud.documentai.v1.Document.Page.tokens]
+        // element.
         TOKEN = 4;
 
-        // References a [Page.visual_elements][google.cloud.documentai.v1.Document.Page.visual_elements] element.
+        // References a
+        // [Page.visual_elements][google.cloud.documentai.v1.Document.Page.visual_elements]
+        // element.
         VISUAL_ELEMENT = 5;
 
-        // Refrrences a [Page.tables][google.cloud.documentai.v1.Document.Page.tables] element.
+        // Refrrences a
+        // [Page.tables][google.cloud.documentai.v1.Document.Page.tables]
+        // element.
         TABLE = 6;
 
-        // References a [Page.form_fields][google.cloud.documentai.v1.Document.Page.form_fields] element.
+        // References a
+        // [Page.form_fields][google.cloud.documentai.v1.Document.Page.form_fields]
+        // element.
         FORM_FIELD = 7;
       }
 
-      // Required. Index into the [Document.pages][google.cloud.documentai.v1.Document.pages] element, for example using
-      // [Document.pages][page_refs.page] to locate the related page element.
-      // This field is skipped when its value is the default 0. See
+      // Required. Index into the
+      // [Document.pages][google.cloud.documentai.v1.Document.pages] element,
+      // for example using
+      // `[Document.pages][page_refs.page]` to locate the related page element.
+      // This field is skipped when its value is the default `0`. See
       // https://developers.google.com/protocol-buffers/docs/proto3#json.
       int64 page = 1 [(google.api.field_behavior) = REQUIRED];
 
-      // Optional. The type of the layout element that is being referenced if any.
+      // Optional. The type of the layout element that is being referenced if
+      // any.
       LayoutType layout_type = 2 [(google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Deprecated.  Use [PageRef.bounding_poly][google.cloud.documentai.v1.Document.PageAnchor.PageRef.bounding_poly] instead.
-      string layout_id = 3 [
-        deprecated = true,
-        (google.api.field_behavior) = OPTIONAL
-      ];
+      // Optional. Deprecated.  Use
+      // [PageRef.bounding_poly][google.cloud.documentai.v1.Document.PageAnchor.PageRef.bounding_poly]
+      // instead.
+      string layout_id = 3
+          [deprecated = true, (google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Identifies the bounding polygon of a layout element on the page.
+      // Optional. Identifies the bounding polygon of a layout element on the
+      // page.
       BoundingPoly bounding_poly = 4 [(google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Confidence of detected page element, if applicable. Range `[0, 1]`.
+      // Optional. Confidence of detected page element, if applicable. Range
+      // `[0, 1]`.
       float confidence = 5 [(google.api.field_behavior) = OPTIONAL];
     }
 
@@ -754,8 +809,9 @@ message Document {
   // This message is used for text changes aka. OCR corrections.
   message TextChange {
     // Provenance of the correction.
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1.Document.text].  There can only be a
-    // single `TextAnchor.text_segments` element.  If the start and
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1.Document.text].  There can
+    // only be a single `TextAnchor.text_segments` element.  If the start and
     // end index of the text segment are the same, the text change is inserted
     // before that index.
     TextAnchor text_anchor = 1;
@@ -790,22 +846,25 @@ message Document {
   // Optional. UTF-8 encoded text in reading order from the document.
   string text = 4 [(google.api.field_behavior) = OPTIONAL];
 
-  // Placeholder.  Styles for the [Document.text][google.cloud.documentai.v1.Document.text].
-  repeated Style text_styles = 5;
+  // Styles for the [Document.text][google.cloud.documentai.v1.Document.text].
+  repeated Style text_styles = 5 [deprecated = true];
 
   // Visual page layout for the [Document][google.cloud.documentai.v1.Document].
   repeated Page pages = 6;
 
-  // A list of entities detected on [Document.text][google.cloud.documentai.v1.Document.text]. For document shards,
-  // entities in this list may cross shard boundaries.
+  // A list of entities detected on
+  // [Document.text][google.cloud.documentai.v1.Document.text]. For document
+  // shards, entities in this list may cross shard boundaries.
   repeated Entity entities = 7;
 
-  // Placeholder.  Relationship among [Document.entities][google.cloud.documentai.v1.Document.entities].
+  // Placeholder.  Relationship among
+  // [Document.entities][google.cloud.documentai.v1.Document.entities].
   repeated EntityRelation entity_relations = 8;
 
-  // Placeholder.  A list of text corrections made to [Document.text][google.cloud.documentai.v1.Document.text].  This
-  // is usually used for annotating corrections to OCR mistakes.  Text changes
-  // for a given revision may not overlap with each other.
+  // Placeholder.  A list of text corrections made to
+  // [Document.text][google.cloud.documentai.v1.Document.text].  This is usually
+  // used for annotating corrections to OCR mistakes.  Text changes for a given
+  // revision may not overlap with each other.
   repeated TextChange text_changes = 14;
 
   // Information about the sharding if this document is sharded part of a larger
diff --git a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document_processor_service.proto b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document_processor_service.proto
index e748ae1f748..016d99a8edd 100644
--- a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document_processor_service.proto
+++ b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document_processor_service.proto
@@ -53,7 +53,8 @@ option (google.api.resource_definition) = {
 // structured information from unstructured or semi-structured documents.
 service DocumentProcessorService {
   option (google.api.default_host) = "documentai.googleapis.com";
-  option (google.api.oauth_scopes) = "https://www.googleapis.com/auth/cloud-platform";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform";
 
   // Processes a single document.
   rpc ProcessDocument(ProcessRequest) returns (ProcessResponse) {
@@ -70,7 +71,8 @@ service DocumentProcessorService {
 
   // LRO endpoint to batch process many documents. The output is written
   // to Cloud Storage as JSON in the [Document] format.
-  rpc BatchProcessDocuments(BatchProcessRequest) returns (google.longrunning.Operation) {
+  rpc BatchProcessDocuments(BatchProcessRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*}:batchProcess"
       body: "*"
@@ -88,7 +90,8 @@ service DocumentProcessorService {
 
   // Fetches processor types. Note that we do not use ListProcessorTypes here
   // because it is not paginated.
-  rpc FetchProcessorTypes(FetchProcessorTypesRequest) returns (FetchProcessorTypesResponse) {
+  rpc FetchProcessorTypes(FetchProcessorTypesRequest)
+      returns (FetchProcessorTypesResponse) {
     option (google.api.http) = {
       get: "/v1/{parent=projects/*/locations/*}:fetchProcessorTypes"
     };
@@ -96,7 +99,8 @@ service DocumentProcessorService {
   }
 
   // Lists the processor types that exist.
-  rpc ListProcessorTypes(ListProcessorTypesRequest) returns (ListProcessorTypesResponse) {
+  rpc ListProcessorTypes(ListProcessorTypesRequest)
+      returns (ListProcessorTypesResponse) {
     option (google.api.http) = {
       get: "/v1/{parent=projects/*/locations/*}/processorTypes"
     };
@@ -120,7 +124,8 @@ service DocumentProcessorService {
   }
 
   // Gets a processor version detail.
-  rpc GetProcessorVersion(GetProcessorVersionRequest) returns (ProcessorVersion) {
+  rpc GetProcessorVersion(GetProcessorVersionRequest)
+      returns (ProcessorVersion) {
     option (google.api.http) = {
       get: "/v1/{name=projects/*/locations/*/processors/*/processorVersions/*}"
     };
@@ -128,7 +133,8 @@ service DocumentProcessorService {
   }
 
   // Lists all versions of a processor.
-  rpc ListProcessorVersions(ListProcessorVersionsRequest) returns (ListProcessorVersionsResponse) {
+  rpc ListProcessorVersions(ListProcessorVersionsRequest)
+      returns (ListProcessorVersionsResponse) {
     option (google.api.http) = {
       get: "/v1/{parent=projects/*/locations/*/processors/*}/processorVersions"
     };
@@ -137,7 +143,8 @@ service DocumentProcessorService {
 
   // Deletes the processor version, all artifacts under the processor version
   // will be deleted.
-  rpc DeleteProcessorVersion(DeleteProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc DeleteProcessorVersion(DeleteProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       delete: "/v1/{name=projects/*/locations/*/processors/*/processorVersions/*}"
     };
@@ -149,7 +156,8 @@ service DocumentProcessorService {
   }
 
   // Deploys the processor version.
-  rpc DeployProcessorVersion(DeployProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc DeployProcessorVersion(DeployProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*/processorVersions/*}:deploy"
       body: "*"
@@ -162,7 +170,8 @@ service DocumentProcessorService {
   }
 
   // Undeploys the processor version.
-  rpc UndeployProcessorVersion(UndeployProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc UndeployProcessorVersion(UndeployProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*/processorVersions/*}:undeploy"
       body: "*"
@@ -186,7 +195,8 @@ service DocumentProcessorService {
 
   // Deletes the processor, unloads all deployed model artifacts if it was
   // enabled and then deletes all artifacts associated with this processor.
-  rpc DeleteProcessor(DeleteProcessorRequest) returns (google.longrunning.Operation) {
+  rpc DeleteProcessor(DeleteProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       delete: "/v1/{name=projects/*/locations/*/processors/*}"
     };
@@ -198,7 +208,8 @@ service DocumentProcessorService {
   }
 
   // Enables a processor
-  rpc EnableProcessor(EnableProcessorRequest) returns (google.longrunning.Operation) {
+  rpc EnableProcessor(EnableProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*}:enable"
       body: "*"
@@ -210,7 +221,8 @@ service DocumentProcessorService {
   }
 
   // Disables a processor
-  rpc DisableProcessor(DisableProcessorRequest) returns (google.longrunning.Operation) {
+  rpc DisableProcessor(DisableProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*}:disable"
       body: "*"
@@ -221,10 +233,13 @@ service DocumentProcessorService {
     };
   }
 
-  // Set the default (active) version of a [Processor][google.cloud.documentai.v1.Processor] that will be used in
-  // [ProcessDocument][google.cloud.documentai.v1.DocumentProcessorService.ProcessDocument] and
+  // Set the default (active) version of a
+  // [Processor][google.cloud.documentai.v1.Processor] that will be used in
+  // [ProcessDocument][google.cloud.documentai.v1.DocumentProcessorService.ProcessDocument]
+  // and
   // [BatchProcessDocuments][google.cloud.documentai.v1.DocumentProcessorService.BatchProcessDocuments].
-  rpc SetDefaultProcessorVersion(SetDefaultProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc SetDefaultProcessorVersion(SetDefaultProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{processor=projects/*/locations/*/processors/*}:setDefaultProcessorVersion"
       body: "*"
@@ -237,7 +252,8 @@ service DocumentProcessorService {
 
   // Send a document for Human Review. The input document should be processed by
   // the specified processor.
-  rpc ReviewDocument(ReviewDocumentRequest) returns (google.longrunning.Operation) {
+  rpc ReviewDocument(ReviewDocumentRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{human_review_config=projects/*/locations/*/processors/*/humanReviewConfig}:reviewDocument"
       body: "*"
@@ -261,17 +277,19 @@ message ProcessRequest {
     RawDocument raw_document = 5;
   }
 
-  // Required. The resource name of the [Processor][google.cloud.documentai.v1.Processor] or
+  // Required. The resource name of the
+  // [Processor][google.cloud.documentai.v1.Processor] or
   // [ProcessorVersion][google.cloud.documentai.v1.ProcessorVersion]
-  // to use for processing. If a [Processor][google.cloud.documentai.v1.Processor] is specified, the server will use
-  // its [default version][google.cloud.documentai.v1.Processor.default_processor_version]. Format:
-  // `projects/{project}/locations/{location}/processors/{processor}`, or
+  // to use for processing. If a
+  // [Processor][google.cloud.documentai.v1.Processor] is specified, the server
+  // will use its [default
+  // version][google.cloud.documentai.v1.Processor.default_processor_version].
+  // Format: `projects/{project}/locations/{location}/processors/{processor}`,
+  // or
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      type: "*"
-    }
+    (google.api.resource_reference) = { type: "*" }
   ];
 
   // Whether Human Review feature should be skipped for this request. Default to
@@ -332,16 +350,15 @@ message ProcessResponse {
 
 // Request message for batch process document method.
 message BatchProcessRequest {
-  // Required. The resource name of [Processor][google.cloud.documentai.v1.Processor] or
+  // Required. The resource name of
+  // [Processor][google.cloud.documentai.v1.Processor] or
   // [ProcessorVersion][google.cloud.documentai.v1.ProcessorVersion].
   // Format: `projects/{project}/locations/{location}/processors/{processor}`,
   // or
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      type: "*"
-    }
+    (google.api.resource_reference) = { type: "*" }
   ];
 
   // The input documents for batch process.
@@ -356,9 +373,7 @@ message BatchProcessRequest {
 }
 
 // Response message for batch process document method.
-message BatchProcessResponse {
-
-}
+message BatchProcessResponse {}
 
 // The long running operation metadata for batch process method.
 message BatchProcessMetadata {
@@ -473,8 +488,8 @@ message ListProcessorTypesResponse {
 
 // Request message for list all processors belongs to a project.
 message ListProcessorsRequest {
-  // Required. The parent (project and location) which owns this collection of Processors.
-  // Format: `projects/{project}/locations/{location}`
+  // Required. The parent (project and location) which owns this collection of
+  // Processors. Format: `projects/{project}/locations/{location}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -525,8 +540,9 @@ message GetProcessorVersionRequest {
 
 // Request message for list all processor versions belongs to a processor.
 message ListProcessorVersionsRequest {
-  // Required. The parent (project, location and processor) to list all versions.
-  // Format: `projects/{project}/locations/{location}/processors/{processor}`
+  // Required. The parent (project, location and processor) to list all
+  // versions. Format:
+  // `projects/{project}/locations/{location}/processors/{processor}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -582,9 +598,7 @@ message DeployProcessorVersionRequest {
 }
 
 // Response message for the deploy processor version method.
-message DeployProcessorVersionResponse {
-
-}
+message DeployProcessorVersionResponse {}
 
 // The long running operation metadata for deploy processor version method.
 message DeployProcessorVersionMetadata {
@@ -604,9 +618,7 @@ message UndeployProcessorVersionRequest {
 }
 
 // Response message for the undeploy processor version method.
-message UndeployProcessorVersionResponse {
-
-}
+message UndeployProcessorVersionResponse {}
 
 // The long running operation metadata for the undeploy processor version
 // method.
@@ -619,8 +631,8 @@ message UndeployProcessorVersionMetadata {
 // a regionalized backend service, and if the processor type is not available
 // on that region, the creation will fail.
 message CreateProcessorRequest {
-  // Required. The parent (project and location) under which to create the processor.
-  // Format: `projects/{project}/locations/{location}`
+  // Required. The parent (project and location) under which to create the
+  // processor. Format: `projects/{project}/locations/{location}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -628,8 +640,9 @@ message CreateProcessorRequest {
     }
   ];
 
-  // Required. The processor to be created, requires [processor_type] and [display_name]
-  // to be set. Also, the processor is under CMEK if CMEK fields are set.
+  // Required. The processor to be created, requires [processor_type] and
+  // [display_name] to be set. Also, the processor is under CMEK if CMEK fields
+  // are set.
   Processor processor = 2 [(google.api.field_behavior) = REQUIRED];
 }
 
@@ -663,9 +676,7 @@ message EnableProcessorRequest {
 
 // Response message for the enable processor method.
 // Intentionally empty proto for adding fields in future.
-message EnableProcessorResponse {
-
-}
+message EnableProcessorResponse {}
 
 // The long running operation metadata for enable processor method.
 message EnableProcessorMetadata {
@@ -686,9 +697,7 @@ message DisableProcessorRequest {
 
 // Response message for the disable processor method.
 // Intentionally empty proto for adding fields in future.
-message DisableProcessorResponse {
-
-}
+message DisableProcessorResponse {}
 
 // The long running operation metadata for disable processor method.
 message DisableProcessorMetadata {
@@ -698,7 +707,9 @@ message DisableProcessorMetadata {
 
 // Request message for the set default processor version method.
 message SetDefaultProcessorVersionRequest {
-  // Required. The resource name of the [Processor][google.cloud.documentai.v1.Processor] to change default version.
+  // Required. The resource name of the
+  // [Processor][google.cloud.documentai.v1.Processor] to change default
+  // version.
   string processor = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -706,8 +717,9 @@ message SetDefaultProcessorVersionRequest {
     }
   ];
 
-  // Required. The resource name of child [ProcessorVersion][google.cloud.documentai.v1.ProcessorVersion] to use as default.
-  // Format:
+  // Required. The resource name of child
+  // [ProcessorVersion][google.cloud.documentai.v1.ProcessorVersion] to use as
+  // default. Format:
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{version}`
   string default_processor_version = 2 [
     (google.api.field_behavior) = REQUIRED,
@@ -718,9 +730,7 @@ message SetDefaultProcessorVersionRequest {
 }
 
 // Response message for set default processor version method.
-message SetDefaultProcessorVersionResponse {
-
-}
+message SetDefaultProcessorVersionResponse {}
 
 // The long running operation metadata for set default processor version
 // method.
@@ -747,8 +757,8 @@ message ReviewDocumentRequest {
     Document inline_document = 4;
   }
 
-  // Required. The resource name of the HumanReviewConfig that the document will be
-  // reviewed with.
+  // Required. The resource name of the HumanReviewConfig that the document will
+  // be reviewed with.
   string human_review_config = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
diff --git a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document_schema.proto b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document_schema.proto
index ceb25a1d69a..679a6ee59e8 100644
--- a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document_schema.proto
+++ b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/document_schema.proto
@@ -88,7 +88,7 @@ message DocumentSchema {
     // conventions:
     //
     // - *use `snake_casing`*
-    // - name matching is case-insensitive
+    // - name matching is case-sensitive
     // - Maximum 64 characters.
     // - Must start with a letter.
     // - Allowed characters: ASCII letters `[a-z0-9_-]`.  (For backward
diff --git a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/processor.proto b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/processor.proto
index 3ffe6927df9..ac599e987b6 100644
--- a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/processor.proto
+++ b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/processor.proto
@@ -46,9 +46,10 @@ message ProcessorVersion {
     google.protobuf.Timestamp deprecation_time = 1;
 
     // If set, the processor version that will be used as a replacement.
-    string replacement_processor_version = 2 [(google.api.resource_reference) = {
-                                                type: "documentai.googleapis.com/ProcessorVersion"
-                                              }];
+    string replacement_processor_version = 2
+        [(google.api.resource_reference) = {
+          type: "documentai.googleapis.com/ProcessorVersion"
+        }];
   }
 
   // The possible states of the processor version.
@@ -171,10 +172,11 @@ message Processor {
 
   // The default processor version.
   string default_processor_version = 9 [(google.api.resource_reference) = {
-                                          type: "documentai.googleapis.com/ProcessorVersion"
-                                        }];
+    type: "documentai.googleapis.com/ProcessorVersion"
+  }];
 
-  // Output only. Immutable. The http endpoint that can be called to invoke processing.
+  // Output only. Immutable. The http endpoint that can be called to invoke
+  // processing.
   string process_endpoint = 6 [
     (google.api.field_behavior) = OUTPUT_ONLY,
     (google.api.field_behavior) = IMMUTABLE
diff --git a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/processor_type.proto b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/processor_type.proto
index 2c9ee923051..a54274532cb 100644
--- a/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/processor_type.proto
+++ b/packages/google-cloud-contentwarehouse/protos/google/cloud/documentai/v1/processor_type.proto
@@ -60,4 +60,7 @@ message ProcessorType {
 
   // Launch stage of the processor type
   google.api.LaunchStage launch_stage = 8;
+
+  // A set of Cloud Storage URIs of sample documents for this processor.
+  repeated string sample_document_uris = 9;
 }
diff --git a/packages/google-cloud-contentwarehouse/protos/protos.json b/packages/google-cloud-contentwarehouse/protos/protos.json
index 86463c3306c..aef02965d37 100644
--- a/packages/google-cloud-contentwarehouse/protos/protos.json
+++ b/packages/google-cloud-contentwarehouse/protos/protos.json
@@ -2554,7 +2554,10 @@
                         "textStyles": {
                           "rule": "repeated",
                           "type": "Style",
-                          "id": 5
+                          "id": 5,
+                          "options": {
+                            "deprecated": true
+                          }
                         },
                         "pages": {
                           "rule": "repeated",