code: def test_unary_missing(func):
      if func in (shapely.is_valid_input, shapely.is_missing):
          assert func(None)
      else:
          assert not func(None)
  
imports: from functools import partial
  import numpy
  import pytest
  import shapely
  from shapely import LinearRing, LineString, Point
  from shapely.tests.common import all_types, all_types_z, empty, geometry_collection, ignore_invalid, line_string, linear_ring, point, polygon
label_desc: Use image node_id 3 for calling a global function with example usage: test_unary_missing(func) without return types