fn __reduce<'a>(
handler: &Handler,
__action: i16,
__lookahead_start: Option<&usize>,
__states: &mut Vec<i16>,
__symbols: &mut Vec<(usize, __Symbol<'a>, usize)>,
_: PhantomData<&'a ()>,
) -> Option<Result<SyntaxNode<'a>, ParseError<usize, LalrToken<'a>, &'static str>>>