field = $field; } /** * @return FieldReference */ public function getField() { return $this->field; } /** * @param string */ public function setOp($op) { $this->op = $op; } /** * @return string */ public function getOp() { return $this->op; } } // Adding a class alias for backwards compatibility with the previous class name. class_alias(UnaryFilter::class, 'Google_Service_Firestore_UnaryFilter');