[Twisted-web] Soap Client through http proxy with authentication on twisted!!!!!!!

Hey, I'm working on an soap client at the moment with twisted package version 8.2.0-1. It soap client will have to work in environments where connections have to be routed through a http proxy with authentication, but I can't find any way to specify a http proxy with authentication using any of the Twisted classes. Is this possible? I assumed it was seeing as how it is a fairly common situation but the documentation/API haven't provided any useful information. Help me. ------------------------------ Infomed - Red de Salud de Cuba http://www.sld.cu/ --------------------------------------- Red Telematica de Salud - Cuba CNICM - Infomed