transformers

78a2b19f - Show a warning for missing attention masks when pad_token_id is not None (#24510)

Show a warning for missing attention masks when pad_token_id is not None (#24510) * Adding warning messages to BERT for missing attention masks These warning messages when there are pad tokens within the input ids and no attention masks are given. The warning message should only show up once. * Adding warning messages to BERT for missing attention masks These warning messages are shown when the pad_token_id is not None and no attention masks are given. The warning message should only show up once. * Ran fix copies to copy over the changes to some of the other models * Add logger.warning_once.cache_clear() to the test * Shows warning when there are no attention masks and input_ids start/end with pad tokens * Using warning_once() instead and fix indexing in input_ids check --------- Co-authored-by: JB Lau <hckyn@voyager2.local>