feat: init project

app/utils/ModelInputSchema.py

@@ -0,0 +1,13 @@
+from typing import List, Union
+
+from langchain_core.messages import HumanMessage, AIMessage, SystemMessage
+from pydantic import BaseModel, Field
+
+
+class ModelInputSchema(BaseModel):
+  """Input for the chat endpoint."""
+
+  messages: List[Union[HumanMessage, AIMessage, SystemMessage]] = Field(
+    ...,
+    description="当前对话中的消息历史",
+  )