{
  "test_frac": 0.1,
  "assignment": "deterministic: sha1(need) % 1000 < test_frac*1000",
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      "test": 1222
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      },
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        "test": 1251
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    },
    "amz_reward_bundle": {
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        "test": 7301
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        "test": 5401
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        "test": 1003
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    }
  }
}