'Option representation'

@staticmethod
def opts_represent(opt, prefix):

    if isinstance(opt, int):
        opts = [opt]
    if isinstance(opt, (list, tuple)):
        if ((not opt) or (opt[0] is None)):
            return current.messages['NONE']
        else:
            return ',    '.join([('%s    %s' % (prefix, o)) for o in opt])
    else:
        return current.messages['NONE']
