exists = $exists; } /** * @return bool */ public function getExists() { return $this->exists; } /** * When set, the target document must exist and have been last updated at that * time. Timestamp must be microsecond aligned. * * @param string $updateTime */ public function setUpdateTime($updateTime) { $this->updateTime = $updateTime; } /** * @return string */ public function getUpdateTime() { return $this->updateTime; } } // Adding a class alias for backwards compatibility with the previous class name. class_alias(Precondition::class, 'Google_Service_Firestore_Precondition');