code: def test_real_stream_raises_no_exception(self):
      with tempfile.TemporaryFile(mode="w") as stream:
          self._setup(stream=stream)
          self.report(self.trainer)
  
file_path: chainer/tests/chainer_tests/training_tests/extensions_tests/test_print_report.py
imports: import tempfile
  import unittest
  import mock
  from chainer import testing
  from chainer.training import extensions
label_desc: Use image node_id 4 for calling the TestPrintReport obj's underlying member method code with example usage: obj.test_real_stream_raises_no_exception() without return types