Update main.py

main.py

@@ -123,7 +123,9 @@ class ChatCompletionRequestMessage(BaseModel):
     content: str = Field(default="", description="The content of the message.")
 
 class ChatCompletionRequest(BaseModel):
-    messages: List[ChatCompletionRequestMessage]
+    messages: List[ChatCompletionRequestMessage] = Field(
+        default=[], description="A list of messages to generate completions for."
+    )
 
 system_message = "Below is a conversation between a human user and a helpful AI coding assistant."