docs: def logout(self):
          """Logout of filemail and closing the session."""
  
          # Check if all transfers are complete before logout
          self.transfers_complete
  
          payload = {
              'apikey': self.config.get('apikey'),
              'logintoken': self.session.cookies.get('logintoken')
              }
  
          method, url = get_URL('logout')
          res = getattr(self.session, method)(url, params=payload)
  
          if res.status_code == 200:
              self.session.cookies['logintoken'] = None
              return True
  
          hellraiser(res)