def execute(self, *args, **kwargs):
        result = self.migrate(
            *[self._deserialize(arg) for arg in args],
            **{key: self._deserialize(value)
               for key, value in kwargs.items()})
        if result == None:
            return [self._serialize(val) for val in result]
dataset/ETHPy150Open MirantisWorkloadMobility/CloudFerry/cloudferry/lib/os/migrate/base.py/ObjectTask.execute/operator `is not` -> `==`