{
    "item_id": "item_C3uQ0hZGu3ANx0kuSfadm",
    "previous_item_id": "",
    "type": "message",
    "role": "user",
    "content": [
      {
        "type": "input_text",
        "text": "Greet the caller and ask how you can help!",
        "id": null,
        "audio": null,
        "transcript": null
      }
    ],
    "status": "in_progress"
  },
  {
    "item_id": "item_C3uQ0ycMymMXvPMNEE7K3",
    "previous_item_id": null,
    "type": "message",
    "role": "assistant",
    "status": "in_progress",
    "content": [
      {
        "type": "audio",
        "audio": null,
        "transcript": "Hi there! Thanks for calling We Haul Raleigh. How can I help you today?",
        "id": null,
        "text": null
      }
    ]
  },
  {
    "item_id": "item_C3uQ9XTvjc9tobD9fv9Xw",
    "previous_item_id": "item_C3uQ0ycMymMXvPMNEE7K3",
    "type": "message",
    "role": "user",
    "content": [
      {
        "type": "input_audio",
        "audio": null,
        "transcript": "Where are you located?",
        "id": null,
        "text": null
      }
    ],
    "status": "completed"
  },
  {
    "item_id": "item_C3uQB1RgzHWRYhJ2NjTQf",
    "previous_item_id": null,
    "type": "message",
    "role": "assistant",
    "status": "in_progress",
    "content": [
      {
        "type": "audio",
        "audio": null,
        "transcript": "We’re located in Raleigh, NC, on Little Brier Creek Lane.",
        "id": null,
        "text": null
      }
    ]
  },
  {
    "item_id": "item_C3uQJDk9M2Wxz8cKc25O7",
    "previous_item_id": "item_C3uQB1RgzHWRYhJ2NjTQf",
    "type": "message",
    "role": "user",
    "content": [
      {
        "type": "input_audio",
        "audio": null,
        "transcript": "What do you charge?",
        "id": null,
        "text": null
      }
    ],
    "status": "completed"
  },
  {
    "item_id": "item_C3uQMPUJwIUK3TU01Kp7y",
    "previous_item_id": null,
    "type": "message",
    "role": "assistant",
    "status": "in_progress",
    "content": [
      {
        "type": "audio",
        "audio": null,
        "transcript": "Our fees start at $125 per load. The final price depends on factors like distance, item types, and stairs. You can contact Derek with details for an exact estimate.",
        "id": null,
        "text": null
      }
    ]
  }
]

import json
import logging


def _to_plain(obj):
    if isinstance(obj, (str, int, float, bool)) or obj is None:
        return obj
    if isinstance(obj, dict):
        return {k: _to_plain(v) for k, v in obj.items()}
    if isinstance(obj, (list, tuple)):
        return [_to_plain(x) for x in obj]

    # Pydantic v2
    if hasattr(obj, "model_dump"):
        try:
            return obj.model_dump()
        except Exception:
            pass
    # Pydantic v1
    if hasattr(obj, "dict"):
        try:
            return obj.dict()
        except Exception:
            pass
    if hasattr(obj, "__dict__"):
        try:
            return {k: _to_plain(v) for k, v in vars(obj).items()}
        except Exception:
            pass
    return str(obj)

def raw_log(history):
    serializable_history = _to_plain(history)
    try:
        pretty = json.dumps(serializable_history, indent=2, ensure_ascii=False, default=str)
    except Exception:
        pretty = str(serializable_history)
    logging.info("history(json)=\n%s", pretty)

                    elif event.type == "history_updated":
                          raw_log(event)