{
  "approach": "Modify `BaseSerializer.run_validation` to bind each child serializer with the matching instance from the `instance` list when `many=True`. Specifically, iterate through zipped children (`self.child`) and items (`data`), binding each child\u2019s `instance` to the respective element from the provided `instance` iterable prior to validation.",
  "files_to_edit": [
    "rest_framework/serializers.py"
  ],
  "finish_reason": "stop",
  "hypothesis": "During bulk validation with `many=True`, the validator incorrectly receives the full list of instances as `self.instance` instead of each individual instance per item.",
  "retries": {},
  "usage": {
    "completion": 124,
    "prompt": 17696,
    "reasoning": 0
  }
}