I've added some comments on Rietveld. This time, I pasted the email
addresses manually into the CC field, apparently without success
(I didn't receive mail).

Regarding the use of _testbuffer in the docs: I agree that it's strange,
on the other hand it illustrates several examples much better (length of
a multi-dimensional view, result of cast to ND, etc).


So I'm not sure what to do. Of course I'll take out the examples if you
really don't like it.