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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _list_fields(self):
 """ Get the current settings of the model. The keys depend on the type of model. Returns ------- out : list A list of fields that can be queried using the ``get`` method. """


        response = self.__proxy__.list_fields()
        return [s for s in response['value'] if not s.startswith("_")]