Bugfix

The model receives the prompt (and optional system message). The run uses scorer contains_all with the JSON configuration below. Pass/fail and partial credit are determined entirely by that scorer against the model output; no human grading.

Fix the bug and return corrected Python code only.\n\ndef find_user(users, user_id):\n    for u in users:\n        if u['id'] == user_id:\n            return users[0]\n    return None\n

{
  "expected_contains": [
    "return u",
    "for u in users",
    "return None"
  ]
}