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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 _compile_update_columns(self, values):
 """ Compile the columns for the update statement :param values: The columns :type values: dict :return: The compiled columns :rtype: str """

        columns = []

        for key, value in values.items():
            columns.append("%s = %s" % (self.wrap(key), self.parameter(value)))

        return ", ".join(columns)