diff --git a/google-cloud-clients/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta1/BigQueryStorageClient.java b/google-cloud-clients/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta1/BigQueryStorageClient.java
index ec5b048992c7..357997fc79d3 100644
--- a/google-cloud-clients/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta1/BigQueryStorageClient.java
+++ b/google-cloud-clients/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta1/BigQueryStorageClient.java
@@ -203,7 +203,6 @@ public final ReadSession createReadSession(
     return createReadSession(request);
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Creates a new read session. A read session divides the contents of a BigQuery table into one or
    * more streams, which can then be used to read data from the table. The read session also
@@ -237,7 +236,6 @@ public final ReadSession createReadSession(CreateReadSessionRequest request) {
     return createReadSessionCallable().call(request);
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Creates a new read session. A read session divides the contents of a BigQuery table into one or
    * more streams, which can then be used to read data from the table. The read session also
@@ -270,7 +268,6 @@ public final UnaryCallable<CreateReadSessionRequest, ReadSession> createReadSess
     return stub.createReadSessionCallable();
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Reads rows from the table in the format prescribed by the read session. Each response contains
    * one or more table rows, up to a maximum of 10 MiB per response; read requests which attempt to
@@ -301,7 +298,6 @@ public final ServerStreamingCallable<ReadRowsRequest, ReadRowsResponse> readRows
     return stub.readRowsCallable();
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Creates additional streams for a ReadSession. This API can be used to dynamically adjust the
    * parallelism of a batch processing task upwards by adding additional workers.
@@ -333,7 +329,6 @@ public final BatchCreateReadSessionStreamsResponse batchCreateReadSessionStreams
     return batchCreateReadSessionStreams(request);
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Creates additional streams for a ReadSession. This API can be used to dynamically adjust the
    * parallelism of a batch processing task upwards by adding additional workers.
@@ -360,7 +355,6 @@ public final BatchCreateReadSessionStreamsResponse batchCreateReadSessionStreams
     return batchCreateReadSessionStreamsCallable().call(request);
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Creates additional streams for a ReadSession. This API can be used to dynamically adjust the
    * parallelism of a batch processing task upwards by adding additional workers.
@@ -387,7 +381,6 @@ public final BatchCreateReadSessionStreamsResponse batchCreateReadSessionStreams
     return stub.batchCreateReadSessionStreamsCallable();
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Triggers the graceful termination of a single stream in a ReadSession. This API can be used to
    * dynamically adjust the parallelism of a batch processing task downwards without losing data.
@@ -418,7 +411,6 @@ public final void finalizeStream(Stream stream) {
     finalizeStream(request);
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Triggers the graceful termination of a single stream in a ReadSession. This API can be used to
    * dynamically adjust the parallelism of a batch processing task downwards without losing data.
@@ -451,7 +443,6 @@ public final void finalizeStream(FinalizeStreamRequest request) {
     finalizeStreamCallable().call(request);
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Triggers the graceful termination of a single stream in a ReadSession. This API can be used to
    * dynamically adjust the parallelism of a batch processing task downwards without losing data.
@@ -483,7 +474,6 @@ public final UnaryCallable<FinalizeStreamRequest, Empty> finalizeStreamCallable(
     return stub.finalizeStreamCallable();
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Splits a given read stream into two Streams. These streams are referred to as the primary and
    * the residual of the split. The original stream can still be read from in the same manner as
@@ -501,21 +491,24 @@ public final UnaryCallable<FinalizeStreamRequest, Empty> finalizeStreamCallable(
    *
    * <pre><code>
    * try (BigQueryStorageClient bigQueryStorageClient = BigQueryStorageClient.create()) {
-   *   Stream originalStream = Stream.newBuilder().build();
+   *   Stream originalStream = getStream();
    *   SplitReadStreamResponse response = bigQueryStorageClient.splitReadStream(originalStream);
    * }
    * </code></pre>
    *
    * @param originalStream Stream to split.
    * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   * @deprecated Use {@link BigQueryStorageClient#splitReadStream(SplitReadStreamRequest)}.
    */
   public final SplitReadStreamResponse splitReadStream(Stream originalStream) {
     SplitReadStreamRequest request =
-        SplitReadStreamRequest.newBuilder().setOriginalStream(originalStream).build();
+        SplitReadStreamRequest.newBuilder()
+            .setOriginalStream(originalStream)
+            .setFraction(0.5f)
+            .build();
     return splitReadStream(request);
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Splits a given read stream into two Streams. These streams are referred to as the primary and
    * the residual of the split. The original stream can still be read from in the same manner as
@@ -533,9 +526,10 @@ public final SplitReadStreamResponse splitReadStream(Stream originalStream) {
    *
    * <pre><code>
    * try (BigQueryStorageClient bigQueryStorageClient = BigQueryStorageClient.create()) {
-   *   Stream originalStream = Stream.newBuilder().build();
+   *   Stream originalStream = getStream()
    *   SplitReadStreamRequest request = SplitReadStreamRequest.newBuilder()
    *     .setOriginalStream(originalStream)
+   *     .setFraction(0.5f)
    *     .build();
    *   SplitReadStreamResponse response = bigQueryStorageClient.splitReadStream(request);
    * }
@@ -548,7 +542,6 @@ public final SplitReadStreamResponse splitReadStream(SplitReadStreamRequest requ
     return splitReadStreamCallable().call(request);
   }
 
-  // AUTO-GENERATED DOCUMENTATION AND METHOD
   /**
    * Splits a given read stream into two Streams. These streams are referred to as the primary and
    * the residual of the split. The original stream can still be read from in the same manner as