add and update examples

src/compiled/examples/func.ts

@@ -3,7 +3,7 @@
  * This file is auto-generated. Do not edit manually: changes may be erased.
  * Generated by Aqua compiler: https://github.com/fluencelabs/aqua/. 
  * If you find any bugs, please write an issue on GitHub: https://github.com/fluencelabs/aqua/issues
- * Aqua version: 0.1.8-SNAPSHOT
+ * Aqua version: 0.1.9-SNAPSHOT
  *
  */
 import { FluenceClient, PeerIdB58 } from '@fluencelabs/fluence';
@@ -55,7 +55,7 @@ export async function testFunc(client: FluenceClient, config?: {ttl?: number}):
             .handleTimeout(() => {
                 reject('Request timed out for testFunc');
             })
-        if(config?.ttl) {
+        if(config && config.ttl) {
             r.withTTL(config.ttl)
         }
         request = r.build();