fn __action866(
cx: &mut ParseCtxt<'_>,
__0: (Location, Async, Location),
__1: (Location, Token, Location),
__2: (Location, Generics, Location),
__3: (Location, Token, Location),
__4: (Location, Vec<FnInput>, Location),
__5: (Location, Token, Location),
__6: (Location, Token, Location),
__7: (Location, Vec<Ensures>, Location),
__8: (Location, Token, Location),
__9: (Location, Vec<WhereBoundPredicate>, Location),
) -> FnSig