def __repr__(self):
    if (not self):
        return ('%s()' % (self.__class__.__name__,))
    return ('%s(%r)' % (self.__class__.__name__, list(self)))
def __repr__(self):
    if (not self):
        return ('%s()' % (self.__class__.__name__,))
    return ('%s(%r)' % (self.__class__.__name__, list(self)))