In the Trax framework, I read that the labeled_data in train_task has a tuple with (input_value, target_value). But in the assignment code, the labeled_data is the tuple with (input_value, target_value, weights).
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It is possible that the Trax framework you read is of the latest version and the one used in the course is a previous version which did things differently.
Where exactly you read that?
In general, the input is the (input_value, target_value) and weights are optional (if “None” then the weights become all 1 s)
Oh I read it by type code: help(trax.supervised.training.TrainTask)
But maybe in this version it change the help content.
You are correct, that is not stated in the documentation (including the current one).