from pydantic import BaseModel, Field from typing import Optional from datetime import datetime from uuid import UUID class CountryBase(BaseModel): name: str = Field(..., description="Country name") code: str = Field(..., description="Country code") class CountryCreate(CountryBase): pass class CountryUpdate(CountryBase): name: Optional[str] = Field(None, description="Country name") code: Optional[str] = Field(None, description="Country code") class CountrySchema(CountryBase): id: UUID created_at: datetime updated_at: datetime class Config: orm_mode = True