How to get the size of a folder(directory) ?

[AhmedHelalAhmed]

Hi,
I need to get the size of the directory (folder) in google storage
recently I get list of the files in a directory and send request to storage to get the size of that file
Storage ::disk('gcs')-> size('/path/to/file');
but it's too slow. Is there any other way?

[lengjunbin-trec]

I also have this problem.only get the folder size via count all objects size under this folder.