Method _validate_axis

dask/dataframe/dask_expr/_collection.py:3267–3274

(cls, axis=0, numeric_axis: bool = True)

    @classmethod
    def _validate_axis(cls, axis=0, numeric_axis: bool = True) -> None | Literal[0, 1]:
        if axis not in (0, 1, "index", "columns", None):
            raise ValueError(f"No axis named {axis}")
        if numeric_axis:
            num_axis: dict[str | None, Literal[0, 1]] = {"index": 0, "columns": 1}
            return num_axis.get(axis, axis)
        else:
            return axis

    @derived_from(pd.DataFrame, ua_args=["index"])
    def rename(self, index=None, columns=None):