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/logger/constants.js

@@ -0,0 +1,7 @@
+export var LogMessageType;
+(function (LogMessageType) {
+    LogMessageType["INFO"] = "INFO";
+    LogMessageType["ERROR"] = "ERROR";
+    LogMessageType["WARNING"] = "WARNING";
+    LogMessageType["CRITICAL"] = "CRITICAL";
+})(LogMessageType || (LogMessageType = {}));

ddb_main/packages/rules-engine/es/logger/utils.js

@@ -0,0 +1,26 @@
+import { ConfigUtils } from '../config';
+/**
+ *
+ * @param error
+ * @param contextData
+ */
+export function logError(error, contextData = null) {
+    let config = ConfigUtils.getCurrentRulesEngineConfig();
+    if (config === null || config === void 0 ? void 0 : config.onLogError) {
+        return config.onLogError(error, contextData);
+    }
+    return null;
+}
+/**
+ *
+ * @param message
+ * @param messageType
+ * @param contextData
+ */
+export function logMessage(message, messageType, contextData = null) {
+    let config = ConfigUtils.getCurrentRulesEngineConfig();
+    if (config === null || config === void 0 ? void 0 : config.onLogMessage) {
+        return config.onLogMessage(message, messageType, contextData);
+    }
+    return null;
+}