def __init__():
    """Unused constructor of the super class."""
    print(
        """Initialize the class using one of the class methods:
>>> pyshtools.SHGrid.from_array
>>> pyshtools.SHGrid.from_xarray
>>> pyshtools.SHGrid.from_netcdf
>>> pyshtools.SHGrid.from_file
>>> pyshtools.SHGrid.from_zeros
>>> pyshtools.SHGrid.from_cap
"""
        )
