def METHOD_NAME():
    # Check that nested configuration retrieves the info from the
    # parent config and do not reset them.
    with parallel_config(n_jobs=2):
        p = Parallel()
        assert isinstance(p._backend, BACKENDS[DEFAULT_BACKEND])
        assert p.n_jobs == 2
    with parallel_config(backend='threading'):
        with parallel_config(n_jobs=2):
            p = Parallel()
            assert isinstance(p._backend, ThreadingBackend)
            assert p.n_jobs == 2
    with parallel_config(verbose=100):
        with parallel_config(n_jobs=2):
            p = Parallel()
            assert p.verbose == 100
            assert p.n_jobs == 2