def functionInfo(self, key):
    if (key not in self._functions):
        return None
    info = []
    for p in self._functions[key]:
        info.append({'types': p['types']})
    return info
def functionInfo(self, key):
    if (key not in self._functions):
        return None
    info = []
    for p in self._functions[key]:
        info.append({'types': p['types']})
    return info