code: def test_set_operation_reduce_some_none_len2(func, related_func):
      # in a previous implementation, this would take a different code path
      # and return wrong result
      assert func([empty, None]) == empty
  
imports: import numpy
  import pytest
  import shapely
  from shapely import Geometry, GeometryCollection, Polygon
  from shapely.errors import UnsupportedGEOSVersionError
  from shapely.testing import assert_geometries_equal
  from shapely.tests.common import all_types, empty, ignore_invalid, point, polygon
label_desc: Use image node_id 11 for calling a global function with example usage: test_set_operation_reduce_some_none_len2(func, related_func) without return types