code: def test_coord_map():
      symmetric = [coord_map_py(4, n, "S") for n in range(-6, 6)]
      expected_symmetric = [2, 3, 3, 2, 1, 0, 0, 1, 2, 3, 3, 2]
      assert_array_equal(symmetric, expected_symmetric)
  
      wrap = [coord_map_py(4, n, "W") for n in range(-6, 6)]
      expected_wrap = [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1]
      assert_array_equal(wrap, expected_wrap)
  
      edge = [coord_map_py(4, n, "E") for n in range(-6, 6)]
      expected_edge = [0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 3, 3]
      assert_array_equal(edge, expected_edge)
  
      reflect = [coord_map_py(4, n, "R") for n in range(-6, 6)]
      expected_reflect = [0, 1, 2, 3, 2, 1, 0, 1, 2, 3, 2, 1]
      assert_array_equal(reflect, expected_reflect)
  
      reflect = [coord_map_py(1, n, "R") for n in range(-6, 6)]
      expected_reflect = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
      assert_array_equal(reflect, expected_reflect)
  
      other = [coord_map_py(4, n, "undefined") for n in range(-6, 6)]
      expected_other = list(range(-6, 6))
      assert_array_equal(other, expected_other)
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_coord_map() without return types