Hi - We are trying to implement a lowering of Torchscript to MLIR/ATen dialect as part of the LLVM npcomp incubator effort [1]. Is there a declarative specification of the Torchscript IR we could leverage for this work ?  Thanks
[1] https://llvm.discourse.group/t/npcomp-next-steps-for-torch-ir-aten-dialect/1777 27