How to convert FArchive to and from bytes?

Hello!

How to save and load FArchive from to bytes or string? C++.

example:

	FDateTime dt = FDateTime::Now();
	
	FArchive arch;
	arch << dt; // save time to arch

	saveToDisk(arch.toByte());
	FArchive loaded = loadFromDisk();

	FDateTime restoredTime = loaded.deserialize<FDateTime>();