Short name describing what triggered the graph break
torch.associative_scan: combine_fn improper number of leaves
Values or code snippet captured at the break point
str(_combine_treespec.as_python_constant())
Explanation of why the graph break was triggered
combine_fn needs to produce one pytree for the output but combine_fn produces the pytree {_combine_treespec.as_python_constant()}.
Hints on how to resolve the graph break