[Zope-ZEO] MountPoint example?

[Andrew Kuchling]

Are there any simple examples of using a MountPoint instance?  Looking
at the MountedFileStorage code doesn't clarify things for me much.  
Currently I'm trying to get this to work:

# Create mount point
from ZODB import Mount
mp = Mount.MountPoint('',
                      'ZODB.FileStorage /tmp/test2.fs',
                      classDefsFromRoot = 1)
root1['SESSIONS'] = mp

 ... 
o = Object()
 ...
root1['SESSIONS']['obj'] = o

The final line doesn't work; what should it look like?  Are the
instantiation of the MountPoint instance and placing it within the
ZODB root 'root1' correct?

--amk