code: def transform_non_interleaved(x, y, z=None):
      if z is None:
          return [x + 1, y + 2]
      else:
          return [x + 1, y + 2, z + 3]
  
imports: import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_equal
  import shapely
  from shapely import count_coordinates, get_coordinates, set_coordinates, transform
  from shapely.tests.common import empty, empty_line_string_z, empty_point, empty_point_z, geometry_collection, geometry_collection_z, line_string, line_string_z, linear_ring, multi_line_string, multi_point, multi_polygon, point, point_z, polygon, polygon_with_hole, polygon_z
label_desc: Use image node_id 20 for calling a global function with example usage: transform_non_interleaved(x, y, z) and returns: list, list