code: def get(self, file_id, session=None):
          
          gout = GridOut(self.__collection, file_id, session=session)
  
          # Raise NoFile now, instead of on first attribute access.
          gout._ensure_file()
          return gout
docs: Get a file from GridFS by ``"_id"``.
  
          Returns an instance of :class:`~gridfs.grid_file.GridOut`,
          which provides a file-like interface for reading.
  
          :Parameters:
            - `file_id`: ``"_id"`` of the file to get
            - `session` (optional): a
              :class:`~pymongo.client_session.ClientSession`
  
          .. versionchanged:: 3.6
             Added ``session`` parameter.