from sqlalchemy import Column, String, DateTime, Text, JSON, Integer from datetime import datetime from app.core.database import Base class VasSchema(Base): __tablename__ = "vas_schema" id = Column(Integer, primary_key=True, autoincrement=True) name = Column(String(255), nullable=False) description = Column(Text) schema_json = Column(JSON, nullable=False) created_at = Column(DateTime, default=datetime.utcnow) updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)