code: def setup_method(self):
      if sys.platform == "win32":
          files = ["api-ms-win-crt-math-l1-1-0.dll"]
      elif sys.platform == "darwin":
          files = ["libm.dylib"]
      else:
          files = ["libm.so", "libm.so.6"]
  
      for file in files:
          try:
              self.lib = ctypes.CDLL(file)
              break
          except OSError:
              pass
      else:
          # This test doesn't work on some Linux platforms (Fedora for
          # example) that put an ld script in libm.so - see gh-5370
          pytest.skip("Ctypes can't import libm.so")
  
      restype = ctypes.c_double
      argtypes = (ctypes.c_double,)
      for name in ["sin", "cos", "tan"]:
          func = getattr(self.lib, name)
          func.restype = restype
          func.argtypes = argtypes
  
imports: import sys
  import math
  import numpy
  from numpy import sqrt, cos, sin, arctan, exp, log, pi
  from numpy.testing import assert_, assert_allclose, assert_array_less, assert_almost_equal
  import pytest
  from scipy.integrate import quad, dblquad, tplquad, nquad
  from scipy.special import erf, erfc
  from scipy._lib._ccallback import LowLevelCallable
  import ctypes
  import ctypes.util
  from scipy._lib._ccallback_c import sine_ctypes
  import scipy.integrate._test_multivariate
label_desc: Use image node_id 1 for calling the TestCtypesQuad obj's underlying member method code with example usage: obj.setup_method() without return types