Regenerate spanner client (#6159)

Generated in GitHub action: https://togithub.com/googleapis/googleapis/google-api-php-client-services/actions/workflows/codegen.yaml

Author: yoshi-code-bot

src/Spanner/Backup.php

@@ -56,6 +56,8 @@ class Backup extends \Google\Collection
    * @var string
    */
   public $incrementalBackupChainId;
+  protected $instancePartitionsType = BackupInstancePartition::class;
+  protected $instancePartitionsDataType = 'array';
   /**
    * @var string
    */
@@ -229,6 +231,20 @@ public function getIncrementalBackupChainId()
   {
     return $this->incrementalBackupChainId;
   }
+  /**
+   * @param BackupInstancePartition[]
+   */
+  public function setInstancePartitions($instancePartitions)
+  {
+    $this->instancePartitions = $instancePartitions;
+  }
+  /**
+   * @return BackupInstancePartition[]
+   */
+  public function getInstancePartitions()
+  {
+    return $this->instancePartitions;
+  }
   /**
    * @param string
    */

src/Spanner/BackupInstancePartition.php

@@ -0,0 +1,44 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+namespace Google\Service\Spanner;
+
+class BackupInstancePartition extends \Google\Model
+{
+  /**
+   * @var string
+   */
+  public $instancePartition;
+
+  /**
+   * @param string
+   */
+  public function setInstancePartition($instancePartition)
+  {
+    $this->instancePartition = $instancePartition;
+  }
+  /**
+   * @return string
+   */
+  public function getInstancePartition()
+  {
+    return $this->instancePartition;
+  }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(BackupInstancePartition::class, 'Google_Service_Spanner_BackupInstancePartition');