req_session.py

import requests


class Req1:
  
    def __init__(self):
        self._session = requests.Session()
   
    def do_req():
        with self._session:
            self._session.post(...)


class Req2:
  
    def __init__(self):
        self._session = requests.Session()
   
    def do_req():
        with requests.Session() as session:
            session.post(...)