From bbf2d725020c90a46529c2324d7910edb154f9e2 Mon Sep 17 00:00:00 2001
From: Chengmo <cmchengmo@163.com>
Date: Mon, 20 May 2024 17:39:41 +0800
Subject: [PATCH] add base code (#323)

---
 appbuilder/core/assistant/type/thread_type.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/appbuilder/core/assistant/type/thread_type.py b/appbuilder/core/assistant/type/thread_type.py
index 7cfdf5f7..7d67c2ea 100644
--- a/appbuilder/core/assistant/type/thread_type.py
+++ b/appbuilder/core/assistant/type/thread_type.py
@@ -219,8 +219,8 @@ class RequiredAction(BaseModel):
 
 
 class LastError(BaseModel):
-    type: str = ""
-    message: str = ""
+    type: Optional[str] = ""
+    message: Optional[str] = ""
 
 class FinalAnswerMessage(BaseModel):
     message_id: Optional[str] = ""
@@ -288,7 +288,7 @@ class RunStepResult(BaseModel):
     cancelled_at: Optional[int] = 0
     failed_at: Optional[int] = 0
     completed_at: Optional[int] = 0
-    last_error: Union[LastError, str] = ""
+    last_error: Union[LastError, str, None] = None
     type: Optional[str] = 'null'
     step_datail: Union[RunStepDetail, None] = None