Series.str.startswith(pat, na=nan)

Series.skew(axis=None, skipna=None, level=None, numeric_only=None, **kwargs)

Series.rolling(window, min_periods=None, freq=None, center=False, win_type=None, on=None, axis=0)

Series.divide(other, level=None, fill_value=None, axis=0)

Series.to_xarray()

Series.reorder_levels(order)

Series.T return the transpose, which is by definition self

Series.str.isalnum()

Series.dt.to_pytimedelta()

Series.rsub(other, level=None, fill_value=None, axis=0)