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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 handle_error(self, exp):
 """Called if a Mapper returns MappingInvalid. Should handle the error and return it in the appropriate format, can be overridden in order to change the error format. :param exp: MappingInvalid exception raised """

        payload = {
            "message": "Invalid or incomplete data provided.",
            "errors": exp.errors
        }
        self.endpoint.return_error(self.error_status, payload=payload)