<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def params(self):
 """ URL parameters for wq.io.loaders.NetLoader """

        params, complex = self.get_params()
        url_params = self.default_params.copy()
        url_params.update(self.serialize_params(params, complex))
        return url_params