public <A> CompletableFuture<A> write(Class<A> clss) {
if (String.class.isAssignableFrom(clss)) {
CompletableFuture<String> res = new CompletableFuture<>();
public <A> CompletableFuture<A> write(Class<A> clss) {
if (String.class.isAssignableFrom(clss)) {
CompletableFuture<String> res = new CompletableFuture<>();