Regenerate dataflow client (#6187)

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

Author: yoshi-code-bot

src/Dataflow/TemplateMetadata.php

@@ -46,6 +46,10 @@ class TemplateMetadata extends \Google\Collection
    * @var bool
    */
   public $supportsExactlyOnce;
+  /**
+   * @var string
+   */
+  public $yamlDefinition;
 
   /**
    * @param string
@@ -145,6 +149,20 @@ public function getSupportsExactlyOnce()
   {
     return $this->supportsExactlyOnce;
   }
+  /**
+   * @param string
+   */
+  public function setYamlDefinition($yamlDefinition)
+  {
+    $this->yamlDefinition = $yamlDefinition;
+  }
+  /**
+   * @return string
+   */
+  public function getYamlDefinition()
+  {
+    return $this->yamlDefinition;
+  }
 }
 
 // Adding a class alias for backwards compatibility with the previous class name.