ddl = $ddl; } /** * @return string[] */ public function getDdl() { return $this->ddl; } public function setImprovementFactor($improvementFactor) { $this->improvementFactor = $improvementFactor; } public function getImprovementFactor() { return $this->improvementFactor; } } // Adding a class alias for backwards compatibility with the previous class name. class_alias(IndexAdvice::class, 'Google_Service_Spanner_IndexAdvice');