from sqlalchemy import ForeignKey from sqlalchemy.orm import Mapped, mapped_column from app.database import Base class PinnedChat(Base): __tablename__ = "pinned_chat" user_id: Mapped[int] = mapped_column(ForeignKey("users.id"), primary_key=True) chat_id: Mapped[int] = mapped_column(ForeignKey("chat.id"), primary_key=True)