

@Appender(_index_shared_docs['fillna'])
def fillna(self, value=None, downcast=None):
    self._assert_can_do_op(result)
    if self.hasnans:
        result = self.putmask(self._isnan, value)
        if (downcast is None):
            return Index(result, name=self.name)
    return self._shallow_copy()

dataset/ETHPy150Open pydata/pandas/pandas/indexes/base.py Index.fillna/VarMisuse@31/45 `value`->`result`