Add try-async method

source/index.ts

@@ -1,6 +1,7 @@
 export * from './event-emitter.ts';
 export * from './exponential-backoff.ts';
 export * from './extended-json.ts';
+export * from './misc.ts';
 export * from './script.ts';
 export * from './sse-session/index.ts';
 export * from './template/errors.ts';