Implement transaction handling

app/schemas/id_token.py

@@ -1,3 +1,4 @@
+from datetime import datetime
 from typing import Optional
 from uuid import UUID
 from pydantic import BaseModel
@@ -22,4 +23,13 @@ class IdToken(IdTokenBase):
     id: UUID
 
     class Config:
-        from_attributes = True
+        from_attributes = True
+
+class IdTokenLearnBase(BaseModel):
+    user_id: UUID
+
+class IdTokenLearnRequest(IdTokenLearnBase):
+    until: Optional[datetime] = None
+
+class IdTokenLearnResponse(IdTokenLearnBase):
+    until: datetime