yarn fix lint

Author: humanagent

integrations/cointoss/src/walletService.ts

@@ -351,10 +351,12 @@ export class WalletService implements AgentWallet {
     }
   }
 
-  onRampURL(amount: number, address: string): string | undefined {
+  async onRampURL(
+    amount: number,
+    address: string,
+  ): Promise<string | undefined> {
     if (!appId) return undefined;
-
-    const onRampURL = generateOnRampURL({
+    const onRampURL = await generateOnRampURL({
       appId: appId,
       presetCryptoAmount: Number(amount),
       addresses: {