Response Status Code 400 for no reason

Is there any valid reason, whatsoever ever, as to why I am constantly getting

Response Status Code  400
Response Content:  {'code': 'invalid_json', 'message': 'Request body has invalid json format'}

This is despite having the valid json format?

No matter what I do, Python thinks I have an invalid json format and I am really losing patience with this.

(https://www.codedump.xyz/py/ZrElRh2RFiJJCiXM)

Freshdesk, sort your product out, or stand aside and leve it to someone who can.