transformers

8f630651 - Allow `mlm_probability` to be set to `None` when `mlm=False` in DataCollatorForLanguageModeling (#38522) (#38537)

Allow `mlm_probability` to be set to `None` when `mlm=False` in DataCollatorForLanguageModeling (#38522) (#38537) * mlm_probability in DataCollatorForLanguageModeling should be validated only when mlm is True (#38522) * Change mlm_probability to Optional in DataCollatorForLanguageModeling (#38537) --------- Co-authored-by: eak <eak@ivalua.com>