- Added `excess_token_handling` option to the configuration, allowing users to choose between "drop" and "truncate" for handling tokens exceeding the maximum sequence length.
- Introduced `truncate_or_drop_long_seq` function to manage both single and batched samples based on the selected handling method.
- Updated relevant dataset processing functions to utilize the new handling option, ensuring backward compatibility with existing "drop" behavior.
- Enhanced logging to reflect truncation actions in dataset processing.
This change improves flexibility in managing sequence lengths during training and evaluation.
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