code: def _Close(self):
      
      if not self._file_object_set_in_init:
        self._file_object.close()
        self._file_object = None
        self._range_offset = -1
        self._range_size = -1
docs: Closes the file-like object.
  
      If the file-like object was passed in the init function
      the data range file-like object does not control the file-like object
      and should not actually close it.