class_docstr: Outputs summary data by writing event files to a log directory.
  
  TODO(#4581): This API should be considered EXPERIMENTAL and subject to
  backwards-incompatible changes without notice.
docstr: See `Output`.
docstr_tok: ["See","`","Output","`","."]
code: def flush(self):
      """See `Output`."""
      self._ev_writer.flush()
  
file_path: tensorboard/tensorboard/summary/_output.py
imports: from tensorboard.compat.proto import event_pb2
  from tensorboard.compat.proto import summary_pb2
  from tensorboard.summary.writer import event_file_writer
  from tensorboard.util import tensor_util
  import abc
label_desc: Use image node_id 3 for calling the DirectoryOutput obj's underlying member method code with example usage: obj.flush() without return types