from sfa.senslab.LDAPapi import LDAPapi
from sfa.senslab.slabdriver import SlabDriver
from sfa.util.config import Config
-from sfa.util.xrn import hrn_to_urn, get_authority,Xrn
+from sfa.util.xrn import hrn_to_urn, get_authority,Xrn,get_leaf
from sfa.util.table import SfaTable
from sfa.util.record import SfaRecord
from sfa.trust.hierarchy import Hierarchy