<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def resolvePublic(self, pubID):
 """Try to lookup the catalog local reference associated to a public ID in that catalog """

        ret = libxml2mod.xmlACatalogResolvePublic(self._o, pubID)
        return ret