Raise error on wrong type for to modules_to_save #1496
Merged
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Resolves #1492
This PR is for user convenience. When they try to pass the wrong type to
modules_to_save
, they will now get an early error message, instead of getting an obscure error when callingforward
later.Note:
The reason why
ModulesToSaveWrapper
cannot supportModuleDict
et al. is because it tries to call forward on the original or copied module, but these modules don't implement aforward
method.