fn __action56<'input>(
input: &'input str,
(_, variances, _): (usize, Option<Vec<Variance>>, usize),
(_, upstream, _): (usize, Option<()>, usize),
(_, fundamental, _): (usize, Option<()>, usize),
(_, phantom_data, _): (usize, Option<()>, usize),
(_, one_zst, _): (usize, Option<()>, usize),
(_, repr, _): (usize, Vec<AdtReprAttr>, usize),
(_, _, _): (usize, &'input str, usize),
(_, n, _): (usize, Identifier, usize),
(_, p, _): (usize, Vec<VariableKind>, usize),
(_, w, _): (usize, Vec<QuantifiedWhereClause>, usize),
(_, _, _): (usize, &'input str, usize),
(_, f, _): (usize, Vec<Field>, usize),
(_, _, _): (usize, &'input str, usize),
) -> AdtDefn