code: def _load(self):
          
  
          self.session_id = self._session_object.get_session_id()
  
          # protection against session_id tampering
          if self.session_id and not self._valid_session_id(self.session_id):
              self.session_id = None
  
          if self.session_id:
              d = self.store[self.session_id]
              if isinstance(d, dict) and d:
                  self.update(d)
  
          if not self.session_id:
              self.session_id = self._session_object.generate_session_id()
  
          if not self._data:
              if self._initializer and isinstance(self._initializer, dict):
                  self.update(deepcopy(self._initializer))
  
          self._session_object.set_session_id(self.session_id)
docs: Load the session from the store, by the id from cookie