from pydantic import BaseModel, Field class TextOnlyRequest(BaseModel): text: str = Field(..., example="Your input text here") class RewriteRequest(BaseModel): text: str = Field(..., example="Your input text here") instruction: str = Field(..., example="Rewrite this more concisely") user_api_key: str = Field(..., example="sk-...") class TranslateRequest(BaseModel): text: str = Field(..., example="Translate this") target_lang: str = Field(..., example="fr")