from datetime import date from pydantic import BaseModel class claRequest(BaseModel): class_name : str|None = None start_class_date :date head_teacher_id : int|None = None class_teacher_id : int|None = None class claResponse(BaseModel): code: int = 200 detail: str = 'ok' class_name: str | None = None head_teacher_id: int | None = None class_teacher_id: int | None = None