Grabbed dndbeyond's source code

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

ddb_main/tools/js/Shared/containers/SpellDetailCaster/SpellDetailCaster.tsx

@@ -0,0 +1,19 @@
+import React from "react";
+import { connect } from "react-redux";
+
+import { rulesEngineSelectors } from "@dndbeyond/character-rules-engine/es";
+
+import SpellCaster from "../../components/SpellCaster";
+import * as appEnvSelectors from "../../selectors/appEnv";
+import { SharedAppState } from "../../stores/typings";
+
+function mapStateToProps(state: SharedAppState) {
+  return {
+    ruleData: rulesEngineSelectors.getRuleData(state),
+    abilityLookup: rulesEngineSelectors.getAbilityLookup(state),
+    spellCasterInfo: rulesEngineSelectors.getSpellCasterInfo(state),
+    isReadonly: appEnvSelectors.getIsReadonly(state),
+    theme: rulesEngineSelectors.getCharacterTheme(state),
+  };
+}
+export default connect(mapStateToProps)(SpellCaster);

ddb_main/tools/js/Shared/containers/SpellDetailCaster/index.ts

@@ -0,0 +1,4 @@
+import SpellDetailCaster from "./SpellDetailCaster";
+
+export default SpellDetailCaster;
+export { SpellDetailCaster };