• Returns: {Promise} A promise for a Readable Stream containing a V8 heap snapshot

    Returns a readable stream for a V8 snapshot of the current state of the Worker. See [v8.getHeapSnapshot()][] for more details.

    If the Worker thread is no longer running, which may occur before the ['exit' event][] is emitted, the returned Promise will be rejected immediately with an [ERR_WORKER_NOT_RUNNING][] error.