code: def test_set_operation_reduce_all_none(n, func, related_func):
      assert_geometries_equal(func([None] * n), GeometryCollection([]))
  
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 12 for calling a global function with example usage: test_set_operation_reduce_all_none(n, func, related_func) without return types