code: def get_data(ndim):
      im_gen = (
          NumpyImageTestCase2D()
          if ndim == 2
          else NumpyImageTestCase3D()
      )
      im_gen.setUp()
      return im_gen.imt[0], im_gen.seg1[0], im_gen.segn[0]
  
file_path: MONAI/tests/test_rand_weighted_crop.py
imports: from __future__ import annotations
  import unittest
  import numpy
  from parameterized.parameterized import parameterized
  from monai.data.meta_tensor import MetaTensor
  from monai.transforms.croppad.array import RandWeightedCrop
  from monai.transforms.lazy.functional import apply_pending
  from tests.croppers import CropTest
  from tests.utils import TEST_NDARRAYS_ALL, NumpyImageTestCase2D, NumpyImageTestCase3D, assert_allclose
label_desc: Use image node_id 1 for calling a global function with example usage: get_data(ndim) and returns: im_gen,  im_gen,  im_gen