def __init__(self, urlfunc=mod_urlfunc, entid='<STR_LIT>', itemclass=MambuRole, *args, **kwargs):
self.itemclass = itemclass<EOL>MambuStruct.__init__(self, urlfunc, entid, *args, **kwargs)<EOL>
entid argument is empty. That makes perfect
        sense: you always get serveral roles from Mambu REST API