def METHOD_NAME():
    module = parse('a + ? + b')
    error_node, q, plus_b, endmarker = module.children
    assert error_node.get_code() == 'a +'
    assert q.value == '?'
    assert q.type == 'error_leaf'
    assert plus_b.type == 'factor'
    assert plus_b.get_code() == ' + b'