curl --request PUT \
  --url https://production.trackstarhq.com/wms/returns/{return_id} \
  --header 'Content-Type: application/json' \
  --header 'x-trackstar-access-token: <x-trackstar-access-token>' \
  --header 'x-trackstar-api-key: <x-trackstar-api-key>' \
  --data '{
  "trackstar_tags": [
    "tag1",
    "tag2",
    {
      "tag3": "value3"
    }
  ],
  "warehouse_id": "warehouse",
  "order_id": "order_id",
  "line_items": [
    {
      "sku": "sku",
      "quantity": 1
    }
  ]
}'

{
  "data": {
    "id": "return_id",
    "warehouse_customer_id": "warehouse_customer_id",
    "created_date": "2022-01-01T00:00:00Z",
    "updated_date": "2022-01-02T05:05:05Z",
    "status": "open",
    "raw_status": "raw_status",
    "order_id": "order_id",
    "notes": [
      "This is a note"
    ],
    "line_items": [
      {
        "inventory_item_id": "item_id",
        "sku": "sku",
        "expected_quantity": 1,
        "received_quantity": 1,
        "restocked_quantity": 1,
        "return_reason": "Too Small",
        "quantity": 0,
        "warehouse_id": "deprecated",
        "returned_date": "deprecated"
      }
    ],
    "shipments": [
      {
        "tracking_number": "tracking_number",
        "shipped_date": "2023-02-03T02:04:06Z",
        "arrived_date": "2023-02-03T02:04:06Z",
        "warehouse_id": "warehouse_id",
        "carrier": "carrier",
        "shipping_cost": 1.23,
        "measurements": {
          "length": 1,
          "width": 1,
          "height": 1,
          "unit": "in",
          "weight": 1,
          "weight_unit": "lb"
        },
        "line_items": [
          {
            "inventory_item_id": "item_id",
            "sku": "sku",
            "quantity": 4,
            "receiving_details": [
              {
                "quantity": 1,
                "condition": "good",
                "disposition": "restocked"
              },
              {
                "quantity": 1,
                "condition": "damaged",
                "disposition": "scrapped"
              }
            ]
          }
        ]
      }
    ],
    "external_system_url": "https://example.com/return/123",
    "trackstar_tags": [
      "tag1",
      "tag2",
      {
        "tag3": "value3"
      }
    ],
    "additional_fields": {
      "key": "value"
    }
  },
  "id": "id",
  "unused_fields": [
    ""
  ]
}