Multiple XML-RPC calls over the same connection?

[The Fumigator]

Hi.

I want to be able to create a persistent connection between an XML-RPC
client and server... i.e. I want to be able to login once, carry
out a number of calls and then logout rather than send login info for
every call. 

Is there a way to do this with the xml-rpc code in the standard library?

Thanks in advance