I was going through the SDD tutorial in the Gluon Straight Dope series and they have an import statement:
from mxnet.contrib.ndarray import MultiBoxPrior
and after searching the repo I can not find this function (besides the compiled multi_box files)
so is this defined in python anywhere?
It is auto-generated. see https://github.com/apache/incubator-mxnet/blob/master/python/mxnet/ndarray/register.py
The op impl is in operator/contrib/multibox_prior-*
Since you seem to be familiar with this, could you maybe paste the results of the auto-generated code?
It is a caller into C++ backend, something like MXFuncInvoke('MultiBoxPrior', ...)