You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: coalesce_member.go
    path of file: ./repos/docker-ce/components/engine/vendor/github.com/hashicorp/serf/serf
    
    the code of the file until where you have to start completion: package serf

type coalesceEvent struct {
	Type   EventType
	Member *Member
}

type memberEventCoalescer struct {
	lastEvents   map[string]EventType
	lat
    
func (c *memberEventCoalescer) Handle(e Event) bool {
	switch e.EventType() {
	case EventMemberJoin:
		return true
	case EventMemberLeave:
		return true
	case EventMemberFailed:
		return true
	case EventMemberUpdate:
		return true
	case EventMemberReap:
		return true
	default:
		return false
	}
}