[
  {
    "local_child": "v1",
    "model": "REPLACE_SUPPORTED_MODEL",
    "previous_response_id": "resp_synthetic_0",
    "input": "改为绿色",
    "tools": [
      {
        "type": "image_generation",
        "action": "edit"
      }
    ]
  },
  {
    "local_child": "v2",
    "model": "REPLACE_SUPPORTED_MODEL",
    "previous_response_id": "resp_synthetic_0",
    "input": "改为圆形",
    "tools": [
      {
        "type": "image_generation",
        "action": "edit"
      }
    ]
  }
]