code: def test_irfft2(self):
      x = random((30, 20))
      assert_allclose(x, np.fft.irfft2(np.fft.rfft2(x)), atol=1e-6)
      assert_allclose(
          x,
          np.fft.irfft2(
              np.fft.rfft2(x, norm="backward"), norm="backward"
          ),
          atol=1e-6,
      )
      assert_allclose(
          x,
          np.fft.irfft2(np.fft.rfft2(x, norm="ortho"), norm="ortho"),
          atol=1e-6,
      )
      assert_allclose(
          x,
          np.fft.irfft2(
              np.fft.rfft2(x, norm="forward"), norm="forward"
          ),
          atol=1e-6,
      )
  
imports: import functools
  import queue
  import threading
  from unittest import skipIf, SkipTest
  import pytest
  from pytest import raises
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize, run_tests, TEST_WITH_TORCHDYNAMO, TestCase
label_desc: Use image node_id 12 for calling the TestFFT1D obj's underlying member method code with example usage: obj.test_irfft2() without return types