code: def test_data_property():
      data = pd.DataFrame({"x": [1, 2, 3], "y": list("ABC")})
      chart1 = alt.Chart(data).mark_point()
      chart2 = alt.Chart().mark_point().properties(data=data)
  
      assert chart1.to_dict() == chart2.to_dict()
  
imports: import io
  import json
  import operator
  import os
  import pathlib
  import tempfile
  import jsonschema
  import pytest
  import pandas
  import altair.vegalite.v5
label_desc: Use image node_id 33 for calling a global function with example usage: test_data_property() without return types