import requests

url = "https://{FUSION HOST}/api/searchCluster"

payload = {
    "authConfig": {},
    "validateCluster": True
}
headers = {"Content-Type": "application/json"}

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

print(response.json())

{
  "id": "<string>",
  "connectString": "<string>",
  "zkClientTimeout": 123,
  "zkConnectTimeout": 123,
  "cloud": true,
  "bufferFlushInterval": 123,
  "bufferSize": 123,
  "concurrency": 123,
  "authConfig": {
    "authType": "NONE",
    "username": "<string>",
    "password": "<string>",
    "keyTab": "<string>",
    "principal": "<string>"
  },
  "validateCluster": true
}