class_docstr: Test ability to marshall arrow protos.
class_docstr_tok: ["Test","ability","to","marshall","arrow","protos","."]
code: def test_display_values(self):
      df = pd.DataFrame(
          [[1, 2, 3], [4, 5, 6]],
      )
      styler = df.style.format("{:.2%}")
      st.dataframe(styler)
  
      expected = pd.DataFrame(
          [
              ["100.00%", "200.00%", "300.00%"],
              ["400.00%", "500.00%", "600.00%"],
          ],
      )
  
      proto = self.get_delta_from_queue().new_element.arrow_data_frame
      pd.testing.assert_frame_equal(
          bytes_to_data_frame(proto.styler.display_values), expected
      )
  
imports: import json
  from unittest.mock import MagicMock, patch
  import numpy
  import pandas
  import pyarrow
  import pytest
  from pandas.io.formats.style_render import StylerRenderer
  import streamlit
  from streamlit.elements.lib.column_config_utils import INDEX_IDENTIFIER
  from streamlit.errors import StreamlitAPIException
  from streamlit.type_util import bytes_to_data_frame, pyarrow_table_to_bytes
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
  from tests.testutil import create_snowpark_session
label_desc: Use image node_id 10 for calling the ArrowDataFrameProtoTest obj's underlying member method code with example usage: obj.test_display_values() without return types