the array of key-value pairs available in * the backing store */ public function enumerate(): array; /** * Enumerates the keys for all values that changed to null * @return iterable */ public function enumerateKeysForValuesChangedToNull(): iterable; /** * Creates a subscription to any data change happening. * @param callable(string, mixed, mixed):void $callback Callback to be invoked on data changes where the first parameter is the data key, the second the previous value and the third the new value. * @param string|null $subscriptionId * @return string The subscription ID to use when removing the subscription */ public function subscribe(callable $callback, ?string $subscriptionId = null): string; /** * Removes a subscription from the store based on its subscription id. * @param string $subscriptionId The Id of the subscription to remove. */ public function unsubscribe(string $subscriptionId): void; /** * Clears the data stored in the backing store. Doesn't trigger any subscription. */ public function clear(): void; /** * Sets whether the initialization of the object and/or the initial deserialization has been completed to track whether objects have changed. * @param bool $value value to set */ public function setIsInitializationCompleted(bool $value): void; /** * @return bool Whether the initialization of the object and/or the initial deserialization has been completed to track whether objects have changed. */ public function getIsInitializationCompleted(): bool; /** * Sets whether to return only values that have changed since the initialization of the object when calling the Get and Enumerate methods. * @param bool $value value to set */ public function setReturnOnlyChangedValues(bool $value): void; /** * @return bool Whether to return only values that have changed since the initialization of the object when calling the Get and Enumerate methods. */ public function getReturnOnlyChangedValues(): bool; }