code: public CompletableFuture<ClientConnection> connectAsync(URI uri) {
          return this.connectAsync(null, uri, com.networknt.client.Http2Client.WORKER, com.networknt.client.Http2Client.SSL, com.networknt.client.Http2Client.BUFFER_POOL,
                  OptionMap.create(UndertowOptions.ENABLE_HTTP2, true));
      }
docs: Create async connection with default config value