class_docstr: Test ability to marshall multiselect protos.
docstr: Test that it handles no options.
docstr_tok: ["Test","that","it","handles","no","options","."]
code: def test_no_options(self, options):
      """Test that it handles no options."""
      st.multiselect("the label", options)
  
      c = self.get_delta_from_queue().new_element.multiselect
      self.assertEqual(c.label, "the label")
      self.assertListEqual(c.default[:], [])
      self.assertEqual(c.options, [])
  
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 7 for calling the Multiselectbox obj's underlying member method code with example usage: obj.test_no_options(options) without return types