Program output was:
{'option': (), 'builders': None, 'cache_buildtrees': None, 'network_retries': None, 'colors': False, 'message_lines': None, 'config': '/home/alexandrufazakas/Documents/buildstream/.tox/py35/tmp/test_defaults0/cache/buildstream.conf', 'directory': '/home/alexandrufazakas/Documents/buildstream/.tox/py35/tmp/test_defaults0', 'default_mirror': None, 'pushers': None, 'no_interactive': False, 'debug': None, 'verbose': None, 'strict': None, 'error_lines': None, 'pull_buildtrees': None, 'fetchers': None, 'log_file': None, 'on_error': None}