code: def _create_session(self):
          
          session = requests.Session()
          session.timeout = self.SESSION_TIMEOUT
  
          oauth_access_token, expires_at = SAPSuccessFactorsAPIClient.get_oauth_access_token(
              self.enterprise_configuration.sapsf_base_url,
              self.enterprise_configuration.key,
              self.enterprise_configuration.secret,
              self.enterprise_configuration.sapsf_company_id,
              self.enterprise_configuration.sapsf_user_id,
              self.enterprise_configuration.user_type
          )
  
          session.headers['Authorization'] = 'Bearer {}'.format(oauth_access_token)
          session.headers['content-type'] = 'application/json'
          self.session = session
          self.expires_at = expires_at
docs: Instantiate a new session object for use in connecting with SAP SuccessFactors