code: def test_print_runtime_info(self):
      out = six.StringIO()
      _runtime_info.print_runtime_info(out)
      assert out.getvalue() == str(_runtime_info._get_runtime_info())
  
file_path: chainer/tests/chainer_tests/test_runtime_info.py
imports: import unittest
  import six
  import chainer
  from chainer import _runtime_info
  from chainer import testing
label_desc: Use image node_id 2 for calling the TestRuntimeInfo obj's underlying member method code with example usage: obj.test_print_runtime_info() without return types