diff --git a/litellm/proxy/_new_secret_config.yaml b/litellm/proxy/_new_secret_config.yaml
index eff98ae67..6df2e0825 100644
--- a/litellm/proxy/_new_secret_config.yaml
+++ b/litellm/proxy/_new_secret_config.yaml
@@ -1,4 +1,10 @@
 model_list:
   - model_name: "*"
     litellm_params:
-      model: "*"
\ No newline at end of file
+      model: "*"
+
+litellm_settings:
+  guardrails:
+    - prompt_injection:  # your custom name for guardrail
+        callbacks: [lakera_prompt_injection] # litellm callbacks to use
+        default_on: true # will run on all llm requests when true
\ No newline at end of file
diff --git a/litellm/types/utils.py b/litellm/types/utils.py
index 7f734482c..1a05c1d2a 100644
--- a/litellm/types/utils.py
+++ b/litellm/types/utils.py
@@ -2,7 +2,7 @@ import json
 import time
 import uuid
 from enum import Enum
-from typing import Dict, List, Literal, Optional, Tuple, Union
+from typing import Any, Dict, List, Literal, Optional, Tuple, Union
 
 from openai._models import BaseModel as OpenAIObject
 from pydantic import ConfigDict, Field, PrivateAttr
@@ -219,7 +219,7 @@ class ChatCompletionDeltaToolCall(OpenAIObject):
 
 
 class HiddenParams(OpenAIObject):
-    original_response: Optional[str] = None
+    original_response: Optional[Union[str, Any]] = None
     model_id: Optional[str] = None  # used in Router for individual deployments
     api_base: Optional[str] = None  # returns api base used for making completion call