func WithKeepAliveInterval(d time.Duration) PoolOpt {
	return func(z *poolZ) {
		z.keepAliveInterval = d
	}
}
// WithKeepAliveInterval declares a time interval to tell the pool triggering
// all workers 'Tick()' to server periodically.
WithKeepAliveInterval declares a time interval to tell the pool triggering
all workers 'Tick()' to server periodically.
// WithKeepAliveInterval declares a time interval to tell the pool triggering // all workers ' Tick () ' to server periodically .
func WithKeepAliveInterval(d time.Duration) PoolOpt {
	return func(z *poolZ) {
		z.keepAliveInterval = d
	}
}
func WithKeepAliveInterval ( d time . Duration ) PoolOpt { return func ( z * poolZ ) { z . keepAliveInterval = d } }
WithKeepAliveInterval declares a time interval to tell the pool triggering
all workers 'Tick()' to server periodically.
WithKeepAliveInterval declares a time interval to tell the pool triggering all workers ' Tick () ' to server periodically .