curl --request POST \
  --url https://api.duplik.cn/v1/documents/query-content \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "segment_id": "<string>",
  "chunk_id": "<string>",
  "document_id": "<string>",
  "chunk_index": 123
}
'

{
  "content": "",
  "metadata": {}
}