class_docstr: Test ability to marshall multiselect protos.
code: def test_get_over_max_options_message(
      self, current_selections, max_selections, expected_msg
  ):
      self.assertEqual(
          _get_over_max_options_message(
              current_selections, max_selections
          ),
          expected_msg,
      )
  
imports: from unittest.mock import MagicMock, patch
  import numpy
  import pandas
  import pytest
  from parameterized import parameterized
  import streamlit
  from streamlit.elements.widgets.multiselect import _get_default_count, _get_over_max_options_message
  from streamlit.errors import StreamlitAPIException
  from streamlit.proto.LabelVisibilityMessage_pb2 import LabelVisibilityMessage
  from streamlit.testing.v1.app_test import AppTest
  from streamlit.testing.v1.util import patch_config_options
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
label_desc: Use image node_id 21 for calling the Multiselectbox obj's underlying member method code with example usage: obj.test_get_over_max_options_message(current_selections, max_selections, expected_msg) without return types