code: def test_betaincinv_specific_vals(self):
      # specific values borrowed from SciPy test suite
      special = cupyx.scipy.special
  
      assert special.betaincinv(1, 1, 1) == 1.0
      testing.assert_allclose(
          special.betaincinv(0.0342, 171, 0.25),
          8.4231316935498957e-21,
          rtol=3e-12,
          atol=0,
      )
  
file_path: cupy/tests/cupyx_tests/scipy_tests/special_tests/test_beta.py
imports: import numpy
  import pytest
  import cupy
  from cupy import testing
  import cupyx.scipy.special
label_desc: Use image node_id 5 for calling the TestBetaInc obj's underlying member method code with example usage: obj.test_betaincinv_specific_vals() without return types