code: def test_beta_inf_and_nan(self, xp, scp, dtype, function):
      import scipy.special  # NOQA
  
      func = getattr(scp.special, function)
      a = xp.array([-numpy.inf, numpy.nan, numpy.inf, 0], dtype=dtype)
      return func(
          a[:, xp.newaxis, xp.newaxis],
          a[xp.newaxis, :, xp.newaxis],
          a[xp.newaxis, xp.newaxis, :],
      )
  
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 3 for calling the TestBetaInc obj's underlying member method code with example usage: obj.test_beta_inf_and_nan(xp, scp, dtype, function) and returns: func