{"ast_node_type":"other","tokens":[{"end":20,"kind":"keyword","start":0,"text":"type"}]}
    type MemoryMap =
    type MemoryKind = $crate::const_eval::MemoryKind;
        rustc_data_structures::fx::FxIndexMap<AllocId, (MemoryKind<Self::MemoryKind>, Allocation)>;