InstallOptionsWatchDog the installed func will called when NewOptions called.

New returns a Limiter that will limit to the given RPS.

NewOptions new Options.

NewUnlimited returns a RateLimiter that is not limited.

go:generate optionGen --option_return_previous=false.

WithPer option func for filed per.

WithSlack option func for filed Slack.

Options should use NewOptions to initialize it.

Limiter is used to rate-limit some process, possibly across goroutines.

OptionsInterface visitor + ApplyOption interface for Options.

OptionsVisitor visitor interface for Options.

Option option func.