Grabbed dndbeyond's source code

```
~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js
```

ddb_main/node_modules/tss-react/tools/objectKeys.js

@@ -0,0 +1,9 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.objectKeys = void 0;
+/** Object.keys() with types */
+function objectKeys(o) {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return Object.keys(o);
+}
+exports.objectKeys = objectKeys;