* move `TestAssistedCandidateGeneratorDifferentTokenizers` into a new testing file * refactor * NOTHING. add space to rerun github actions tests * remove it... * NOTHING. add space to rerun github actions tests * remove it... * replace: `self.prev_tokens` -> `self.prev_assistant_ids` * NOTHING. rerun CI tests * remove it * introduce `self.prev_target_ids_len` * fix style * fix style --------- Co-authored-by: Jonathan Mamou <jonathan.mamou@intel.com>