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/@mui/material/transitions/utils.js

@@ -0,0 +1,14 @@
+export const reflow = node => node.scrollTop;
+export function getTransitionProps(props, options) {
+  var _style$transitionDura, _style$transitionTimi;
+  const {
+    timeout,
+    easing,
+    style = {}
+  } = props;
+  return {
+    duration: (_style$transitionDura = style.transitionDuration) != null ? _style$transitionDura : typeof timeout === 'number' ? timeout : timeout[options.mode] || 0,
+    easing: (_style$transitionTimi = style.transitionTimingFunction) != null ? _style$transitionTimi : typeof easing === 'object' ? easing[options.mode] : easing,
+    delay: style.transitionDelay
+  };
+}