def METHOD_NAME(self, values, verbose, smap):
    if verbose:
        name = self.getname()
        if name == None:
            return "<%s>{%s}" % (self.__class__.__name__, values[0])
        else:
            if name[0] == '<':
                name = ""
            return "%s{%s}" % (name, values[0])
    if self._expr is None:
        return "%s{Undefined}" % str(self)
    return values[0]