🚀 The feature, motivation and pitch

With the current implementation of DimensionNode in LTC, each backend has its own implementation (PyTorch/XLA, TorchScript).

At the same time, shape inference builds off of LTC core classes leading to this PR failing to build shape inference implementation for expand.SymInt. Please make the appropriate backend DimensionNode visible to LTC core.

Solution alternatives based on offline chat with @Krovatkin.

• IR core to access the correct backend implementation
• Use multiple inheritance

CC @wconstab @JackCaoG

Alternatives

No response

Additional context

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