Grabbed dndbeyond's source code

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

ddb_main/packages/rules-engine/es/engine/RacialTrait/derivers.js

@@ -0,0 +1,20 @@
+import { AppContextTypeEnum } from '../Core';
+import { getHideInBuilder, getHideInSheet } from './accessors';
+/**
+ *
+ * @param racialTrait
+ * @param context
+ */
+export function deriveHideInContext(racialTrait, context) {
+    if (context !== null && context === AppContextTypeEnum.SHEET) {
+        return getHideInSheet(racialTrait);
+    }
+    return getHideInBuilder(racialTrait);
+}
+/**
+ *
+ * @param racialTrait
+ */
+export function deriveContextData(racialTrait) {
+    return {};
+}