diff --git a/src/modules/app.ts b/src/modules/app.ts
index 23932b1..02e23a4 100644
--- a/src/modules/app.ts
+++ b/src/modules/app.ts
@@ -251,6 +251,7 @@ export default class App extends ModuleBase {
     const balancePath = Path.app(appName).balanceOfUser(userAddress);
     return await this.ain.db.ref(balancePath).getValue();
   }
+  
   private buildSetBillingConfigOp(appName: string, config: appBillingConfig) {
     const path = Path.app(appName).billingConfig();
     return buildSetOperation("SET_VALUE", path, config);