protocolFieldRegex       = regexp.MustCompile(string(ProtocolField) + "=(.*)")
	alpnFieldRegex           = regexp.MustCompile(string(AlpnField) + "=(.*)")
)

func ParseResponses(req *proto.ForwardEchoRequest, resp *proto.ForwardEchoResponse) Responses {
	responses := make([]Response, len(resp.Output))
	for i, output := range resp.Output {
		responses[i] = parseResponse(output)

	GlobalEchoRequests.Add(uint64(request.Count))
	resp, err := c.client.ForwardEcho(ctx, request)
	if err != nil {
		return nil, err
	}

	return ParseResponses(request, resp), nil
}

// GlobalEchoRequests records how many echo calls we have made total, from all sources.
// Note: go tests are distinct binaries per test suite, so this is the suite level number of calls

			Request:           req,
			Proxy:             opts.HTTP.HTTPProxy,
			PropagateResponse: opts.PropagateResponse,
		})
		if err != nil {
			return nil, err
		}
		resp := echoclient.ParseResponses(req, ret)
		return resp, nil
	}
	return callInternal("TestRunner", from, opts, send)
}

func newForwardRequest(opts echo.CallOptions) *proto.ForwardEchoRequest {
	return &proto.ForwardEchoRequest{