code: def test_select_multiple_columns(gpdf):
      cugpdf = cuspatial.from_geopandas(gpdf)
      pd.testing.assert_frame_equal(
          cugpdf[["geometry", "key"]].to_pandas(),
          gpdf[["geometry", "key"]],
      )
  
imports: import geopandas
  import numpy
  import pandas
  import pytest
  from geopandas.testing import assert_geodataframe_equal
  from shapely.affinity import rotate
  from shapely.geometry import LineString, MultiLineString, MultiPoint, MultiPolygon, Point, Polygon
  import cudf
  import cuspatial
label_desc: Use image node_id 9 for calling a global function with example usage: test_select_multiple_columns(gpdf) without return types