class_docstr: Interface for emitting tensor-formatted summary data.
  
  Implementations of this interface can be passed to Writer to customize
  how summary data is actually persisted (e.g. to disk, to memory, over
  the network, etc.).
  
  TODO(#4581): This API should be considered EXPERIMENTAL and subject to
  backwards-incompatible changes without notice.
docstr: Flushes any data that has been buffered.
docstr_tok: ["Flushes","any","data","that","has","been","buffered","."]
code: def flush(self):
      """Flushes any data that has been buffered."""
      pass
  
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 2 for calling the Output obj's underlying member method code with example usage: obj.flush() without return types