Method update

packages/firebase-database/index.ios.ts:157–170

(values: { [key: string]: any }, onComplete?: (error: FirebaseError) => void)

	}

	update(values: { [key: string]: any }, onComplete?: (error: FirebaseError) => void): Promise<void> {
		return new Promise((resolve, reject) => {
			this.native.onDisconnectUpdateChildValuesWithCompletionBlock(serializeItems(values), (error, ref) => {
				if (error) {
					const err = FirebaseError.fromNative(error);
					onComplete?.(err);
					reject(err);
				} else {
					onComplete?.(null);
					resolve();
				}
			});
		});
	}
}

function toFIRDataEventType(event: EventType): FIRDataEventType {