You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: flipud.m
    path of file: ./repos/chebfun/@unbndfun
    
    the code of the file until where you have to start completion: function varargout = flipud(varargin) %#ok<STOUT>
%FLIPUD   Flip/reverse an UNBNDFUN object.
%   FLIPUD is not support for FUN objects on unbounded domains.


    
function varargout = flipud(varargin) %#ok<STOUT>
%FLIPUD   Flip/reverse an UNBNDFUN object.
%   FLIPUD is not support for FUN objects on unbounded domains.

% Copyright 2017 by The University of Oxford and The Chebfun Developers.
% See http://www.chebfun.org/ for Chebfun information.

error('CHEBFUN:UNBNDFUN:flipud:noSupport', ...
    'FLIPUD does not support UNBNDFUN objects.');

end