def keys(self):
        return self.read_backend.model_keys(self._meta)

    ## INTERNALS
Returns an (fd, obj) pair from an ``fd`` parameter.
dataset/ETHPy150Open lsbardel/python-stdnet/stdnet/odm/session.py/SessionModel.keys--crossover with--dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_server/src/tornado/ioloop.py/IOLoop.split_fd