text: from sqlalchemy import Column
  from sqlalchemy.types import Numeric, Integer, String, Enum
  from sqlalchemy.orm import declarative_base
  
  Base = declarative_base()
  
  
  class Cube(Base):
      __tablename__ = 'cubes'
      sn = Column(String(255), primary_key=True)
      name = Column(String(20))
      brand = Column(String(20))
      category = Column(Enum('speed', 'collection'))
      difficulty = Column(Enum('easy', 'not too easy', 'hard'))
      numofpieces = Column(Integer)
      review = Column(String(255))
      price = Column(Numeric)
  