chore: Adding mainFn helpers

lib/mainFn/exportInterfaces.ts

@@ -0,0 +1,8 @@
+import { AddressReceipt } from "./AddressReceipt";
+import { InterfaceReceipt } from "./interfaceReceipt";
+
+export const exportInterfaces = (
+  _firstProof: AddressReceipt,
+  ..._rest: AddressReceipt[]
+) => ({} as InterfaceReceipt);
+export default exportInterfaces;