def parameters_dict_to_str(d):
    """
    Convert a dict of param section to a string

    Parameters
    ----------
    d : dict
        Parameters and their descriptions in a docstring

    Returns
    -------
    param_section : str
        Text in the parameter section

    See Also
    --------
    :func:`parameters_str_to_dict`
    """
    return '\n'.join(d.values())
