How to use the mitogen.master function in mitogen

if counts != {'ps': 1, 'sshd': 1}:
            assert 0, (
                'Docker container %r contained extra running processes '
                'after test completed: %r' % (
                    self.container_name,
                    counts
                )
            )

    def close(self):
        args = ['docker', 'rm', '-f', self.container_name]
        subprocess__check_output(args)


class BrokerMixin(object):
    broker_class = mitogen.master.Broker
    broker_shutdown = False

    def setUp(self):
        super(BrokerMixin, self).setUp()
        self.broker = self.broker_class()

    def tearDown(self):
        if not self.broker_shutdown:
            self.broker.shutdown()
        self.broker.join()
        del self.broker
        super(BrokerMixin, self).tearDown()

    def sync_with_broker(self):
        sync_with_broker(self.broker)

def wrapper(func):
        if func.__module__ != '__main__':
            return func
        import mitogen.parent
        import mitogen.utils
        if profiling:
            mitogen.core.enable_profiling()
            mitogen.master.Router.profiling = profiling
        mitogen.utils.log_to_file(level=log_level)
        return mitogen.core._profile_hook(
            'app.main',
            mitogen.utils.run_with_router,
            func,
        )

'  Original   '
    '  '
    '     Minimized     '
    '  '
    '    Compressed     '
)

for mod in (
        mitogen.parent,
        mitogen.fork,
        mitogen.ssh,
        mitogen.sudo,
        mitogen.select,
        mitogen.service,
        mitogen.fakessh,
        mitogen.master,
    ):
    original = inspect.getsource(mod)
    original_size = len(original)
    minimized = mitogen.minify.minimize_source(original)
    minimized_size = len(minimized)
    compressed = zlib.compress(minimized, 9)
    compressed_size = len(compressed)
    print(
        '%-25s'
        ' '
        '%5i %4.1fKiB'
        '  '
        '%5i %4.1fKiB %.1f%%'
        '  '
        '%5i %4.1fKiB %.1f%%'
    % (