question.py

import requests

payload = [
    {
        "name": "payload_json",
        "value": {
            "content": "this is a PNG file.",
            "attachments": [
                {
                    "id": 0,
                    "filename": "example.png"
                }
            ]
        }
    }, {
        "name": "files[0]",
        "value": "C:\\Users\\peco2282\\Desktop\\example.png",
        "filename": "example.png",
        "content_type": "application/octet-stream"
    }
]

if __name__ == '__main__':
    r = requests.post(
        "https://discord.com/api/webhooks/1013710735051857962/ThisIsWebhookToken",
        json=payload
    )
    print(r.text)