code: def setUp(self):
      return
  
imports: from pyfftw import byte_align, is_byte_aligned, ones_aligned, empty_aligned, zeros_aligned, simd_alignment
  from pyfftw import n_byte_align, n_byte_align_empty, is_n_byte_aligned
  import numpy
  from timeit import Timer
  from .test_pyfftw_base import run_test_suites
  import unittest
  import warnings
label_desc: Use image node_id 2 for calling the ByteAlignTest obj's underlying member method code with example usage: obj.setUp() without return types