{"ast_node_type":"struct","tokens":[{"end":90,"kind":"keyword","start":0,"text":"pub"}]}
pub struct AllocRefMut<'a, 'tcx, Prov: Provenance, Extra, Bytes: AllocBytes = Box<[u8]>> {
/// and had the on-access machine hooks run.
    alloc: &'a mut Allocation<Prov, Extra, Bytes>,