Function _normalize_finish_reason

src/api/routes.py:677–685

(reason: Optional[str])

def _normalize_finish_reason(reason: Optional[str]) -> Optional[str]:
    if reason is None:
        return None
    mapping = {
        "stop": "STOP",
        "length": "MAX_TOKENS",
        "content_filter": "SAFETY",
    }
    return mapping.get(reason, "STOP")


async def _convert_openai_stream_chunk_to_gemini_event(