shift the axis of the channels of conv features before tokening

[Azhihong]

Thanks for your great work.

I have a confusion:  Does the first sentence in paragraph Shifted MLP, Section 2-- 'In shifted MLP, we first shift the axis of the channels of conv features before tokening_' implementedin your release sourced code?

 I didn't see the operation of shift the axis of the channels of conv features in your source code, could your please give me a favour? 

I am looking forward you!