List freight shipment documents

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List the documents available for a freight shipment, such as the Bill of Lading, pallet labels, and the proof of delivery. Documents become available as the shipment progresses: the Bill of Lading is generated at booking, while a proof of delivery only exists after delivery.

Each document's url is a path on the API host that returns the PDF, for example https://api.shipstation.com/v2/downloads/....

{
  "documents": [
    {
      "type": "bill_of_lading",
      "created_at": "2026-04-16T14:32:07Z",
      "url": "/v2/downloads/10/a1b2c3d4e5f6/bill_of_lading.pdf"
    }
  ]
}