Function join

transport.go:924–930

(promises []promise, requests []Request, merger protocol.Merger)

}

func join(promises []promise, requests []Request, merger protocol.Merger) promise {
	return &joined{
		promises: promises,
		requests: requests,
		merger:   merger,
	}
}

func (p *joined) await(ctx context.Context) (Response, error) {
	results := make([]interface{}, len(p.promises))