diff --git a/index.d.ts b/index.d.ts
index bc095fa..25004b4 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,5 +1,7 @@
-interface ... {
-  // ...
+export interface OnlineStatusOpts {
+    onOnline?: () => void,
+    onOffline?: () => void,
+    onStatusChange?: (online: boolean) => void,
 }
 
-export default function use...(): ...;
+export default function useOnlineStatus(opts: OnlineStatusOpts): boolean;