public final MockWebServerExtension enqueue(HttpResponse response) {
        requireNonNull(response, "response");
        mockResponses.add(response);
        return this;
    }
Enqueues the {@link HttpResponse} to return to a client of this {@link MockWebServerExtension}. Multiple
calls will return multiple responses in order.
junit5/src/main/java/com/linecorp/armeria/testing/junit5/server/mock/MockWebServerExtension.java