What is the functional equivalent of display.session in a workflow?

I need to use display.session, but it always evaluates to null. What can I use within a workflow that provides the valid session?
[143 byte] By [user.waveset.accountId] at [2007-11-26 9:03:04]
# 1
<invoke name='getLighthouseContext'><ref>WF_CONTEXT</ref> </invoke>This can be used in place of :display.session in workflows
chits98 at 2007-7-6 23:11:30 > top of Java-index,Web & Directory Servers,Directory Servers...