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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 add_output_converter(self, sqltype, func):
 """Register an output converter function that will be called whenever a value with the given SQL type is read from the database. :param sqltype: the integer SQL type value to convert, which can be one of the defined standard constants (pyodbc.SQL_VARCHAR) or a database-specific value (e.g. -151 for the SQL Server 2008 geometry data type). :param func: the converter function which will be called with a single parameter, the value, and should return the converted value. If the value is NULL, the parameter will be None. Otherwise it will be a Python string. """

        fut = self._execute(self._conn.add_output_converter, sqltype, func)
        return fut