code: def load_suite_from_stdin(self):
          
          suite = unittest.TestSuite()
          rules = Rules("stream", suite)
          line_generator = self._parser.parse_stdin()
          return self._load_lines("stream", line_generator, suite, rules)
docs: Load a test suite with test lines from the TAP stream on STDIN.
  
          :returns: A ``unittest.TestSuite`` instance