Update models.py

models.py

@@ -1,6 +1,12 @@
 from pydantic import BaseModel, EmailStr, Field, validator
 from typing import List, Optional
 
+class ChatIDOut(BaseModel):
+    chat_id: str
+
+class MessageIn(BaseModel):
+    question: str
+    
 class ContactMessage(BaseModel):
     first_name: str = Field(..., min_length=1, max_length=50)
     last_name:  str = Field(..., min_length=1, max_length=50)