Function try_fold_bounds 

pub fn try_fold_bounds<Bounds, Stream, Context, Parser, Acc, Init, Ret, F>(
    parser: Parser,
    bounds: Bounds,
    init: Init,
    try_fold: F,
) -> TryFoldBounds<Parser, Bounds, Init, F>
where
    Stream: Streaming,
    Context: Contexting<UtilsAtom<Stream>>,
    Parser: Parse<Stream, Context>,
    Init: Fn() -> Ret,
    F: Fn(Acc, Parser::Token) -> Ret,
    Ret: Try<Output = Acc>,
    Parsed<Acc, Stream, Context>: FromResidual<Ret::Residual>,
    Bounds: TryFoldBoundsParse,
    Acc: Debug,

Function style version of crate::Utils::try_fold_bounds