code: def test_chndtridf(self):
      # Use a larger atol since mpmath is doing numerical integration
      _assert_inverts(
          sp.chndtridf,
          _noncentral_chi_cdf,
          1,
          [
              Arg(0, 100, inclusive_a=False),
              ProbArg(),
              Arg(0, 100, inclusive_a=False),
          ],
          n=1000,
          rtol=1e-4,
          atol=1e-15,
      )
  
imports: import itertools
  import numpy
  from numpy.testing import assert_equal, assert_allclose
  import pytest
  import scipy.special
  from scipy.special._testutils import MissingModule, check_version, FuncData
  from scipy.special._mptestutils import Arg, IntArg, get_args, mpf2float, assert_mpmath_equal
label_desc: Use image node_id 13 for calling the TestCDFlib obj's underlying member method code with example usage: obj.test_chndtridf() without return types