import requests

url = "https://{FUSION HOST}/api/objects/validate"

payload = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contentDisposition\"\r\n\r\n{\r\n  \"type\": \"<string>\",\r\n  \"parameters\": {},\r\n  \"fileName\": \"<string>\",\r\n  \"creationDate\": \"2023-11-07T05:31:56Z\",\r\n  \"modificationDate\": \"2023-11-07T05:31:56Z\",\r\n  \"readDate\": \"2023-11-07T05:31:56Z\",\r\n  \"size\": 123\r\n}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"entity\"\r\n\r\n{}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"headers\"\r\n\r\n{}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mediaType\"\r\n\r\n{\r\n  \"type\": \"<string>\",\r\n  \"subtype\": \"<string>\",\r\n  \"parameters\": {},\r\n  \"wildcardType\": true,\r\n  \"wildcardSubtype\": true\r\n}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"messageBodyWorkers\"\r\n\r\n{}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"parent\"\r\n\r\n{\r\n  \"contentDisposition\": {\r\n    \"type\": \"<string>\",\r\n    \"parameters\": {},\r\n    \"fileName\": \"<string>\",\r\n    \"creationDate\": \"2023-11-07T05:31:56Z\",\r\n    \"modificationDate\": \"2023-11-07T05:31:56Z\",\r\n    \"readDate\": \"2023-11-07T05:31:56Z\",\r\n    \"size\": 123\r\n  },\r\n  \"entity\": {},\r\n  \"headers\": {},\r\n  \"mediaType\": {\r\n    \"type\": \"<string>\",\r\n    \"subtype\": \"<string>\",\r\n    \"parameters\": {},\r\n    \"wildcardType\": true,\r\n    \"wildcardSubtype\": true\r\n  },\r\n  \"messageBodyWorkers\": {},\r\n  \"parent\": \"<unknown>\",\r\n  \"providers\": {},\r\n  \"bodyParts\": [\r\n    {\r\n      \"contentDisposition\": {\r\n        \"type\": \"<string>\",\r\n        \"parameters\": {},\r\n        \"fileName\": \"<string>\",\r\n        \"creationDate\": \"2023-11-07T05:31:56Z\",\r\n        \"modificationDate\": \"2023-11-07T05:31:56Z\",\r\n        \"readDate\": \"2023-11-07T05:31:56Z\",\r\n        \"size\": 123\r\n      },\r\n      \"entity\": {},\r\n      \"headers\": {},\r\n      \"mediaType\": {\r\n        \"type\": \"<string>\",\r\n        \"subtype\": \"<string>\",\r\n        \"parameters\": {},\r\n        \"wildcardType\": true,\r\n        \"wildcardSubtype\": true\r\n      },\r\n      \"messageBodyWorkers\": {},\r\n      \"parent\": \"<unknown>\",\r\n      \"providers\": {},\r\n      \"parameterizedHeaders\": {}\r\n    }\r\n  ],\r\n  \"parameterizedHeaders\": {}\r\n}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"providers\"\r\n\r\n{}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bodyParts\"\r\n\r\n{\r\n  \"contentDisposition\": {\r\n    \"type\": \"<string>\",\r\n    \"parameters\": {},\r\n    \"fileName\": \"<string>\",\r\n    \"creationDate\": \"2023-11-07T05:31:56Z\",\r\n    \"modificationDate\": \"2023-11-07T05:31:56Z\",\r\n    \"readDate\": \"2023-11-07T05:31:56Z\",\r\n    \"size\": 123\r\n  },\r\n  \"entity\": {},\r\n  \"headers\": {},\r\n  \"mediaType\": {\r\n    \"type\": \"<string>\",\r\n    \"subtype\": \"<string>\",\r\n    \"parameters\": {},\r\n    \"wildcardType\": true,\r\n    \"wildcardSubtype\": true\r\n  },\r\n  \"messageBodyWorkers\": {},\r\n  \"parent\": \"<unknown>\",\r\n  \"providers\": {},\r\n  \"parameterizedHeaders\": {}\r\n}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"fields\"\r\n\r\n{}\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"parameterizedHeaders\"\r\n\r\n{}\r\n-----011000010111000001101001--"
headers = {"Content-Type": "multipart/form-data; boundary=---011000010111000001101001"}

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

print(response.text)

{
  "conflicts": [
    "<string>"
  ],
  "variablesWarnings": [
    "<string>"
  ],
  "variablesErrors": [
    "<string>"
  ],
  "variablesSubstitutions": [
    "<string>"
  ],
  "validationWarnings": [
    "<string>"
  ],
  "validationErrors": [
    "<string>"
  ],
  "importErrors": [
    "<string>"
  ],
  "importActions": [
    "<string>"
  ],
  "zipFileToken": "<string>",
  "transformationMsgs": [
    "<string>"
  ],
  "status": "<string>"
}