code: async def _get_user(self):
          
  
          if self._cache is None:
              try:
                  self._cache = \
                      await self.facebook.get_user(self.fbid, self.page_id)
              except PlatformOperationError:
                  self._cache = {}
          return self._cache
docs: Get the user dict from cache or query it from the platform if missing.