code: def test_empty():
      gs1 = cuspatial.GeoSeries([])
      gs2 = cuspatial.GeoSeries([])
      assert cuspatial.pairwise_point_distance(gs1, gs2).empty
  
file_path: cuspatial/python/cuspatial/cuspatial/tests/spatial/distance/test_pairwise_point_distance.py
imports: import geopandas
  import pytest
  from pandas.testing import assert_series_equal
  from shapely.geometry import LineString, Point
  import cuspatial
label_desc: Use image node_id 1 for calling a global function with example usage: test_empty() without return types