def register_recv(self, handler):
        self.recv_handler = handler
This is an example UDF function to load training data. It loads data from a text file
dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/runtime/north/calvin_proto.py/CalvinTunnel.register_recv--crossover with--dataset/ETHPy150Open yahoo/lopq/spark/example_udf.py/udf