/// A copy of `__future__.all_feature_names`.
pub const ALL_FEATURE_NAMES: &[&str] = &[
    "nested_scopes",
    "generators",
    "division",
    "absolute_import",
    "with_statement",
    "print_function",
    "unicode_literals",
    "barry_as_FLUFL",
    "generator_stop",
    "annotations",
];