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/apiAdapter/errors.js

@@ -0,0 +1,61 @@
+export class ApiAdapterException extends Error {
+    constructor(message) {
+        super(message);
+        Object.setPrototypeOf(this, new.target.prototype);
+        this.name = ApiAdapterException.name;
+    }
+}
+export class ApiAdapterContextException extends ApiAdapterException {
+    constructor(contextData, message) {
+        super(message);
+        Object.setPrototypeOf(this, new.target.prototype);
+        this.name = ApiAdapterContextException.name;
+        this.contextData = contextData;
+    }
+}
+export class OverrideApiException extends ApiAdapterException {
+    constructor(contextData, message) {
+        super(message);
+        Object.setPrototypeOf(this, new.target.prototype);
+        this.name = OverrideApiException.name;
+        this.contextData = contextData;
+    }
+}
+export class AuthMissingException extends ApiAdapterException {
+    constructor(message) {
+        super(message);
+        Object.setPrototypeOf(this, new.target.prototype);
+        this.name = AuthMissingException.name;
+    }
+}
+export class AuthException extends ApiAdapterContextException {
+    constructor(contextData, message) {
+        super(contextData, message);
+        Object.setPrototypeOf(this, new.target.prototype);
+        this.name = AuthException.name;
+    }
+}
+export class ApiAdapterUrlException extends ApiAdapterContextException {
+    constructor(url, errorCode, method, contextData, message) {
+        super(contextData, message);
+        Object.setPrototypeOf(this, new.target.prototype);
+        this.name = ApiAdapterUrlException.name;
+        this.url = url;
+        this.errorCode = errorCode;
+        this.method = method === null ? null : method.toUpperCase();
+    }
+}
+export class ApiException extends ApiAdapterUrlException {
+    constructor(url, errorCode, method, contextData, message) {
+        super(url, errorCode, method, contextData, message);
+        Object.setPrototypeOf(this, new.target.prototype);
+        this.name = ApiException.name;
+    }
+}
+export class ApiAdapterDataException extends ApiAdapterUrlException {
+    constructor(url, errorCode, method, contextData, message) {
+        super(url, errorCode, method, contextData, message);
+        Object.setPrototypeOf(this, new.target.prototype);
+        this.name = ApiAdapterDataException.name;
+    }
+}