import requests

url = "https://{FUSION HOST}/api/connectors/configs/{id}"

payload = {
    "id": "lucidworks_file_upload-api-test-app",
    "properties": { "max_docs": 10 }
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

{
  "parserId": "api-test-app",
  "created": "2024-08-02T18:41:09.470Z",
  "coreProperties": {},
  "modified": "2024-08-02T20:15:04.684Z",
  "id": "lucidworks_file_upload-api-test-app",
  "_id": "hFkHhvlFrg",
  "type": "lucidworks.file-upload",
  "collectionId": "api-test-collection",
  "properties": {
    "mediaType": "application/octet-stream",
    "fileId": "pokedex.json.zip",
    "max_docs": 10
  },
  "pipelineId": "api-test-app"
}