uint64_t get_return_value() const;
const ModelAction * get_reads_from() const { return reads_from; }
Promise * get_reads_from_promise() const { return reads_from_promise; }
uint64_t get_return_value() const;
const ModelAction * get_reads_from() const { return reads_from; }
Promise * get_reads_from_promise() const { return reads_from_promise; }