code: def test_delete_multiple_traces(self):
      # Delete middle trace
      traces = self.figure.data
      self.figure.data = [traces[1]]
  
      # Check messages
      self.figure._send_deleteTraces_msg.assert_called_once_with([0, 2])
      self.assertFalse(self.figure._send_moveTraces_msg.called)
  
file_path: plotly.py/packages/python/plotly/plotly/tests/test_core/test_figure_messages/test_move_delete_traces.py
imports: import sys
  from unittest import TestCase
  import pytest
  import plotly.graph_objs
label_desc: Use image node_id 5 for calling the TestMoveDeleteTracesMessages obj's underlying member method code with example usage: obj.test_delete_multiple_traces() without return types