code: def test_uint(self):
      for t in sctypes["uint"]:
          assert_(
              isinstance(t(), numbers.Integral),
              f"{t.__name__} is not instance of Integral",
          )
          assert_(
              issubclass(t, numbers.Integral),
              f"{t.__name__} is not subclass of Integral",
          )
  
file_path: catboost/contrib/python/numpy/py3/numpy/core/tests/test_abc.py
imports: from numpy.testing import assert_
  import numbers
  import numpy
  from numpy.core.numerictypes import sctypes
label_desc: Use image node_id 5 for calling the TestABC obj's underlying member method code with example usage: obj.test_uint() without return types