{"ast_node_type":"import","tokens":[{"end":112,"kind":"keyword","start":0,"text":"///"}]}
    /// (Identifying the offset in that allocation, however, is harder -- use `Memory::ptr_get_alloc` for that.)
    /// Otherwise this function is best-effort (but must agree with `Machine::ptr_get_alloc`).
    fn get_alloc_id(self) -> Option<AllocId>;