the model was trained by
net = NetModel["Inception V1 Trained on ImageNet Competition Data"]
Export["model.json",model,"MXNet"]
model.json
Import["model.json",{"MXNet","Net"}]
During evaluation of Import::invmxlayer: Layer named "1.pool1_3x3_s2_pad$0" couldn't be created, layer type "Pad" is not supported.
$Failed
So sad
So we cann't import many models into Mathematica.