ContextHandler returns an actor, i.e.

New creates a new, empty TaskGroup.

SignalHandler creates an actor that terminates when a signal is received or the context is canceled.

SkipInterrupt returns an InterruptFn that does nothing when called.

SkipInterruptCtx returns an InterruptCtxFn that does nothing when called.

nolint:errname,gochecknoglobals // Satisfies the os.Interrupt.

nolint:errname,gochecknoglobals // Satisfies the os.Kill.

TaskGroup manages a collection of concurrent tasks (actors).