def pull_cfg_from_parameters_out_file(
    parameters_out_file, namelist_to_read="nml_allcfgs"
):
    """Pull out a single config set from a MAGICC ``PARAMETERS.OUT`` file.

    This function reads in the ``PARAMETERS.OUT`` file and returns a single file with
    the config that needs to be passed to MAGICC in order to do the same run as is
    represented by the values in ``PARAMETERS.OUT``.

    Parameters
    ----------
    parameters_out_file : str
        The ``PARAMETERS.OUT`` file to read

    namelist_to_read : str
        The namelist to read from the file.

    Returns
    -------
    :obj:`f90nml.Namelist`
        An f90nml object with the cleaned, read out config.

    Examples
    --------
    >>> cfg = pull_cfg_from_parameters_out_file("PARAMETERS.OUT")
    >>> cfg.write("/somewhere/else/ANOTHERNAME.cfg")
    """
    parameters_out = read_cfg_file(parameters_out_file)
    return pull_cfg_from_parameters_out(
        parameters_out, namelist_to_read=namelist_to_read
    )