import urllib
import urllib.request
import json
import string

def post(url: str, body: str, header: dict) -> tuple[str,dict]:
    data = body.encode("utf-8")
    req = urllib.request.Request(url, data=data, headers=header, method="POST") 
    with urllib.request.urlopen(req) as resp: 
        resp_text = resp.read().decode("utf-8")
        resp_headers = dict(resp.headers)
        return resp_tex...