import requests

url = "https://{FUSION HOST}/api/index-pipelines/{id}/collections/{collection}/debug{?bufferDocsForSolr,echo,echoMaxCount,params,simulate,throwOnError}"

payload = {}
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/vnd.lucidworks-document"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())

{
  "docs": [
    {
      "id": "<string>",
      "fields": [
        {
          "name": "<string>",
          "value": {},
          "metadata": {},
          "annotations": [
            {
              "type": "<string>",
              "start": 123,
              "end": 123,
              "features": {},
              "label": "<string>",
              "featureCount": 123
            }
          ]
        }
      ],
      "metadata": {},
      "commands": [
        {
          "name": "<string>",
          "params": {}
        }
      ],
      "hints": {}
    }
  ],
  "stats": {}
}