code: def test_abstract(self):
      assert_(issubclass(np.number, numbers.Number))
  
      assert_(issubclass(np.inexact, numbers.Complex))
      assert_(issubclass(np.complexfloating, numbers.Complex))
      assert_(issubclass(np.floating, numbers.Real))
  
      assert_(issubclass(np.integer, numbers.Integral))
      assert_(issubclass(np.signedinteger, numbers.Integral))
      assert_(issubclass(np.unsignedinteger, numbers.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 1 for calling the TestABC obj's underlying member method code with example usage: obj.test_abstract() without return types