Sort emails on IMAPS server

Dear list,

I'm hoping to sort emails on IMAP server before fetching them.

In Python 2, I know that the following code would do sorting, letting 
the latest emails come out first:

status, [MsgLst] = M.sort('REVERSE DATE', 'US-ASCII', 'ALL')

Here M is the connection to the IMAP server.

I wonder if there is such an option in getmail.

I tried to look for it, but couldn't find it.

If this option is not in getmail, may I request this feature to be 
considered?

Thank you!

Yours sincerely,

Xianwen