import datetime from typing import Optional, List from pydantic import BaseModel class PhoneTime(BaseModel): start: datetime.datetime end: datetime.datetime class DoctorInformation(BaseModel): nr: Optional[int] = 0 name: str tel: str fax: Optional[str] = None anrede: str email: Optional[str] = None distance: int strasse: str hausnummer: str plz: str ort: str telefonzeiten: List[PhoneTime]