code: def test_crs_mismatch(self, dfs):
      index, df1, df2, expected = dfs
      df1.crs = "epsg:4326"
      with pytest.warns(
          UserWarning, match="CRS mismatch between the CRS"
      ):
          sjoin(df1, df2)
  
imports: import math
  from typing import Sequence
  import numpy
  import pandas
  import shapely
  from shapely.geometry import Point, Polygon, GeometryCollection
  import geopandas
  import geopandas._compat
  from geopandas import GeoDataFrame, GeoSeries, read_file, sjoin, sjoin_nearest
  from geopandas.testing import assert_geodataframe_equal, assert_geoseries_equal
  from pandas.testing import assert_frame_equal, assert_series_equal
  import pytest
label_desc: Use image node_id 2 for calling the TestSpatialJoin obj's underlying member method code with example usage: obj.test_crs_mismatch(dfs) without return types