def get_arg_clause(self, view, arg_value):
        field = self.get_field(view)
        try:
            value = field.deserialize(arg_value)
        except __HOLE__ as e:
            errors = (
                self.format_validation_error(message)
                for message, path in utils.iter_validation_errors(e.messages)
            )
            raise ApiError(400, *errors)

        return self.get_filter_clause(view, value)
dataset/ETHPy150Open 4Catalyzer/flask-resty/flask_resty/filtering.py/FilterFieldBase.get_arg_clause