* start at index 0 * add test to check for missing turns * apply black * Update test_prompt_tokenizers.py * Update src/axolotl/monkeypatch/fastchat_conversation_turns.py Co-authored-by: Motoki Wu <tokestermw@gmail.com> * fix linting * apply black * add more tests for llama/sharegpt * make logic clearer --------- Co-authored-by: Motoki Wu <tokestermw@gmail.com>