from typing import Optional

from pydantic import BaseModel, Field


class Token(BaseModel):
    """
    Schema for the token response.
    """
    access_token: str = Field(..., description="JWT access token")
    token_type: str = Field(..., description="Token type (bearer)")


class TokenPayload(BaseModel):
    """
    Schema for the token payload (JWT claims).
    """
    username: Optional[str] = None