code: def rotate_90_2d():
      t = torch.eye(3)
      t[:, 0] = torch.FloatTensor([0, -1, 0])
      t[:, 1] = torch.FloatTensor([1, 0, 0])
      return t
  
file_path: MONAI/tests/test_resample.py
imports: from __future__ import annotations
  import unittest
  import torch
  from parameterized import parameterized
  from monai.transforms.lazy.functional import resample
  from monai.utils import convert_to_tensor
  from tests.utils import assert_allclose, get_arange_img
label_desc: Use image node_id 1 for calling a global function with example usage: rotate_90_2d() and returns: t