code: def setup_method(self):
      restype = ctypes.c_double
      argtypes = (ctypes.c_int, ctypes.c_double)
      for name in [
          "_multivariate_typical",
          "_multivariate_indefinite",
          "_multivariate_sin",
      ]:
          func = get_clib_test_routine(name, restype, *argtypes)
          setattr(self, name, func)
  
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 TestMultivariateCtypesQuad obj's underlying member method code with example usage: obj.setup_method() without return types