code: func SerfDefaultConfig() *serf.Config {
  	base := serf.DefaultConfig()
  
  	// This effectively disables the annoying queue depth warnings.
  	base.QueueDepthWarning = 1000000
  
  	// This enables dynamic sizing of the message queue depth based on the
  	// cluster size.
  	base.MinQueueDepth = 4096
  
  	// This gives leaves some time to propagate through the cluster before
  	// we shut down. The value was chosen to be reasonably short, but to
  	// allow a leave to get to over 99.99% of the cluster with 100k nodes
  	// (using https://www.serf.io/docs/internals/simulator.html).
  	base.LeavePropagateDelay = 3 * time.Second
  
  	return base
  }
docs: // SerfDefaultConfig returns a Consul-flavored Serf default configuration,
  // suitable as a basis for a LAN, WAN, segment, or area.