Free up the callback map and cache If you use callbacks a lot, you could get memory leak. e.g. If you use anonymous callback function in a 5000 iterations loop, you will get 5000 callbacks in cache. It's a better idea to free them.
If you use a named callback function, there will be only one entry in the cache.
A bidirectional Stdio IPC channel in RPC style. This allows 2 JS/TS processes to call each other's API like using libraries in RPC style, without needing to deal with
argv,stdin,stdoutdirectly.