From 010b55e6db7edcc5cba56813eed8ff696d16505f Mon Sep 17 00:00:00 2001
From: Krrish Dholakia <krrishdholakia@gmail.com>
Date: Thu, 27 Jun 2024 08:56:52 -0700
Subject: [PATCH] fix(utils.py): handle arguments being None

Fixes https://github.com/BerriAI/litellm/issues/4440
---
 litellm/types/utils.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/litellm/types/utils.py b/litellm/types/utils.py
index f2b161128cf..a63e34738a4 100644
--- a/litellm/types/utils.py
+++ b/litellm/types/utils.py
@@ -168,11 +168,13 @@ class Function(OpenAIObject):
 
     def __init__(
         self,
-        arguments: Union[Dict, str],
+        arguments: Optional[Union[Dict, str]],
         name: Optional[str] = None,
         **params,
     ):
-        if isinstance(arguments, Dict):
+        if arguments is None:
+            arguments = ""
+        elif isinstance(arguments, Dict):
             arguments = json.dumps(arguments)
         else:
             arguments = arguments