[Zope] adding instance of Local File Sysem programattically

I'm doing something wrong, but I just don't seed it. from a python script container.manage_addProduct['Local File System'].addLocalFS( someid, sometitle, somebasepath) fails with a key error on 'Local File System'. However, if one builds a LFS from the ZMI and looks at the meta type, that's what is returned. I'm sure it's somthing simple. BTW, I am using version 1.0.