docstr: Validate attribute types.
docstr_tok: ["Validate","attribute","types","."]
code: def test_attr(self, args):
      """Validate attribute types."""
      exc = np.AxisError(*args)
      if len(args) == 1:
          assert exc.axis is None
          assert exc.ndim is None
      else:
          axis, ndim, *_ = args
          assert exc.axis == axis
          assert exc.ndim == ndim
  
file_path: catboost/contrib/python/numpy/py3/numpy/core/tests/test__exceptions.py
imports: import pickle
  import pytest
  import numpy
label_desc: Use image node_id 1 for calling the TestAxisError obj's underlying member method code with example usage: obj.test_attr(args) without return types