code: def test_irfft(self):
      a = np.ones(self.input_shape) * 1 + 0j
      self._test_mtsame(np.fft.irfft, a)
  
imports: import numpy
  import pytest
  from numpy.random import random
  from numpy.testing import assert_array_equal, assert_raises, assert_allclose, IS_WASM
  import threading
  import queue
label_desc: Use image node_id 5 for calling the TestFFTThreadSafe obj's underlying member method code with example usage: obj.test_irfft() without return types