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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 _write_class_header(self):
 """ Generate a class header for stored routine wrapper. """

        self._write_line('from {0!s} import {1!s}'.format(self._parent_class_namespace, self._parent_class_name))
        self._write_line()
        self._write_line()
        self._write_line('# ' + ('-' * 118))
        self._write_line('class {0!s}({1!s}):'.format(self._wrapper_class_name, self._parent_class_name))
        self._write_line('    """')
        self._write_line('    The stored routines wrappers.')
        self._write_line('    """')