code: def _GenerateEventsData(self):
      with test_util.FileWriterCache.get(self.log_dir) as fw:
          event = event_pb2.Event(
              wall_time=1,
              step=1,
              summary=summary_pb2.Summary(
                  value=[
                      summary_pb2.Summary.Value(
                          tag="s1", simple_value=0
                      )
                  ]
              ),
          )
          fw.add_event(event)
  
imports: import gzip
  import io
  import json
  import os
  import numpy
  import tensorflow
  import unittest
  from werkzeug import test
  from werkzeug import wrappers
  from google.protobuf import text_format
  from tensorboard.backend import application
  from tensorboard.backend.event_processing import data_provider
  from tensorboard.backend.event_processing import plugin_event_multiplexer
  from tensorboard.compat.proto import event_pb2
  from tensorboard.compat.proto import summary_pb2
  from tensorboard.compat import tf
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.projector import projector_config_pb2
  from tensorboard.plugins.projector import projector_plugin
  from tensorboard.util import test_util
label_desc: Use image node_id 23 for calling the ProjectorAppTest obj's underlying member method code with example usage: obj._GenerateEventsData() without return types