golang-github-nozzle-throttler-dev - 1.1-4 main

The API is almost identical to WaitGroups,
but it allows you to set a max number of workers that can be
running simultaneously. It uses channels internally to block until a job
completes by calling Done() or until all jobs have been completed. It
also provides a built in error channel that captures your goroutine
errors and provides access to them as []error after you exit the loop.