Broadcast values along this axis, if aligning two objects of
            different dimensions.

            .. deprecated:: 2.1

        Returns
        -------
        tuple of ({klass}, type of other)
            Aligned objects.

        Examples
        --------
        >>> df = pd.DataFrame(
        ...     [[1, 2, 3, 4], [6, 7, 8, 9]], columns=["D", "B", "E", "A"], index=[1, 2]
        ... )
        >>> other = pd.DataFrame(
        ...     [[10, 20, 30, 40], [60, 70, 80, 90], [600, 700, 800, 900]],
        ...     columns=["A", "B", "C", "D"],
        ...     index=[2, 3, 4],
        ... )
        >>> df
           D  B  E  A
        1  1  2  3  4
        2  6  7  8  9
        >>> other
            A    B    C    D
        2   10   20   30   40
        3   60   70   80   90
        4  600  700  800  900

        Align on columns:

        >>> left, right = df.align(other, join="outer", axis=1)
        >>> left
           A  B   C  D  E
        1  4  2 NaN  1  3
        2  9  7 NaN  6  8
        >>> right
            A    B    C    D   E
        2   10   20   30   40 NaN
        3   60   70   80   90 NaN
        4  600  700  800  900 NaN

        We can also align on the index:

        >>> left, right = df.align(other, join="outer", axis=0)
        >>> left
            D    B    E    A
        1  1.0  2.0  3.0  4.0
        2  6.0  7.0  8.0  9.0
        3  NaN  NaN  NaN  NaN
        4  NaN  NaN  NaN  NaN
        >>> right
            A      B      C      D
        1    NaN    NaN    NaN    NaN
        2   10.0   20.0   30.0   40.0
        3   60.0   70.0   80.0   90.0
        4  600.0  700.0  800.0  900.0

        Finally, the default `axis=None` will align on both index and columns:

        >>> left, right = df.align(other, join="outer", axis=None)
        >>> left
             A    B   C    D    E
        1  4.0  2.0 NaN  1.0  3.0
        2  9.0  7.0 NaN  6.0  8.0
        3  NaN  NaN NaN  NaN  NaN
        4  NaN  NaN NaN  NaN  NaN
        >>> right
               A      B      C      D   E
        1    NaN    NaN    NaN    NaN NaN
        2   10.0   20.0   30.0   40.0 NaN
        3   60.0   70.0   80.0   90.0 NaN
        4  600.0  700.0  800.0  900.0 NaN
        z3The 'method', 'limit', and 'fill_axis' keywords in zt.align are deprecated and will be removed in a future version. Call fillna directly on the returned objects instead.rņ