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    "part_ref_id": { "$oid": "6838a225aa635f4b87ba08fd" },
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  },
  {
    "part_ref_id": { "$oid": "6838a225aa635f4b87ba08fe" },
    "repair_ref_id": { "$oid": "6838a8e4aa635f4b87ba0946" },
    "price": 100,
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  }
]