@Appender(Index._summary.__doc__)
def _summary(self, name=None) -> str:
    result = super()._summary(name=name)
    if self.freq:
        result += f'''
Freq: {self.freqstr}'''
    return result
@Appender(Index._summary.__doc__)
def _summary(self, name=None) -> str:
    result = super()._summary(name=name)
    if self.freq:
        result += f'
Freq: {self.freqstr}'
    return result