Create models.py

models.py

@@ -0,0 +1,13 @@
+# models.py
+
+from pydantic import BaseModel
+
+class InitChatRequest(BaseModel):
+    video_id: str
+
+class ChatRequest(BaseModel):
+    session_id: str
+    query: str
+
+class EndSessionRequest(BaseModel):
+    session_id: str