def remove_user_function(self, func):
        del self._defns[func]
Obtain a a list of switches or DPID detected by this controller
dataset/ETHPy150Open numba/numba/numba/targets/base.py/BaseContext.remove_user_function--crossover with--dataset/ETHPy150Open nfvlabs/openmano/openvim/ODL.py/OF_conn.get_of_switches