AssertionError: Item selection is supported only on python list/tuple objects

Hello Developers,

We are trying to convert Pytorch models to CoreML using coremltools, while converting we used jit.trace to create trace of model where we encountered a warning that if model has controlflow and conditions it is not advisable to use trace instead convert into TorchScript using jit.script,

However after successful conversion of model into TorchScript, Now in the next step of conversion from TorchScript to CoreML here is the error we are getting when we tried to convert to coremltools python package.
This root error is so abstract that we are not able to trace-back from where its occurring.

`AssertionError: Item selection is supported only on python list/tuple objects`