code: def test_domain(self):
      val = sc.pdtrc(-1.1, 1.0)
      assert np.isnan(val)
  
file_path: scipy/scipy/special/tests/test_pdtr.py
imports: import numpy
  import scipy.special
  from numpy.testing import assert_almost_equal, assert_array_equal
label_desc: Use image node_id 5 for calling the TestPdtrc obj's underlying member method code with example usage: obj.test_domain() without return types