docstr: Tests that different components of mesh summary share the same
  step.
docstr_tok: ["Tests","that","different","components","of","mesh","summary","share","the","same","step","."]
code: def test_step(self):
      """Tests that different components of mesh summary share the same
      step."""
      tensor_data = test_utils.get_random_mesh(
          100, add_faces=True, add_colors=True
      )
      config_dict = {"foo": 1}
      events = self.mesh_events(
          "a",
          tensor_data.vertices,
          faces=tensor_data.faces,
          colors=tensor_data.colors,
          config_dict=config_dict,
          step=333,
      )
      self.assertEqual(333, events[0].step)
      self.assertEqual(333, events[1].step)
      self.assertEqual(333, events[2].step)
  
imports: import glob
  import json
  import os
  import tensorflow
  from tensorboard.compat import tf2
  from tensorboard.plugins.mesh import summary
  from tensorboard.plugins.mesh import metadata
  from tensorboard.plugins.mesh import plugin_data_pb2
  from tensorboard.plugins.mesh import test_utils
label_desc: Use image node_id 5 for calling the MeshSummaryV2Test obj's underlying member method code with example usage: obj.test_step() without return types