curl --request GET \
  --url https://api.letpiper.com/v1/orgs/{org_id}/knowledge/documents/{document_id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "collectionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "filename": "<string>",
  "mimeType": "<string>",
  "bytesIngested": 123,
  "processingStatus": "<string>",
  "processingProgress": 123,
  "createdAt": "2023-11-07T05:31:56Z",
  "relativePath": "<string>",
  "organizationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "title": "<string>",
  "processingError": "<string>",
  "language": "<string>",
  "rawContent": "<string>",
  "chunks": []
}