Hey @t-vi, the idea of a fallback for unsupported TorchScript Ops is great. I
am currently pursuing a similar approach for unsupported (and custom) TFLite
Ops.
I also stumbled over the issue that `num_inpust == -1` leads to problems in
the `type_infer` step and "solved" it in a quite bad way b
As I understand we do not have currently accumulation data type attribute for
ops, right? We just seems need to introduce such one similar to dtype. The
default value should match to dtype if it is defined and to type if dtype is
not defined. The change of accumulator type is a matter of some
