def link_refs(self, dbservers):
        for (fdw, srv) in dbservers:
            dbserver = dbservers[(fdw, srv)]
            assert self[fdw]
            wrapper = self[fdw]
            if not hasattr(wrapper, 'servers'):
                wrapper.servers = {}
            wrapper.servers.update({srv: dbserver})
Connect servers to their respective foreign data wrappers
dataset/ETHPy150Open perseas/Pyrseas/pyrseas/dbobject/foreign.py/ForeignDataWrapperDict.link_refs