old_contents: from asyncqlio.orm.schema.column import Column
  from asyncqlio.orm.schema.table import table_base
  from asyncqlio.orm.schema.types import BigInt, Boolean, Text
  
  Table = table_base()
  
  
  class Guild(Table):
      id = Column(BigInt, primary_key=True)
      cog_blacklist = Column(Text, nullable=True)
      welcome = Column(Text, nullable=True)
      farewell = Column(Text, nullable=True)
      prefix = Column(Text, nullable=True)
      twitter = Column(Boolean)
  
  
  class Member(Table):
      guild_id = Column(BigInt, primary_key=True)
      id = Column(BigInt, primary_key=True)
      plonked = Column(Boolean)
  
  
  class Channel(Table):
      id = Column(BigInt, primary_key=True)
      guild_id = Column(BigInt)
      plonked = Column(Boolean)
  
new_contents: from asyncqlio.orm.schema.column import Column
  from asyncqlio.orm.schema.table import table_base
  from asyncqlio.orm.schema.types import BigInt, Boolean, Text
  
  Table = table_base()
  
  
  class Guild(Table):
      id = Column(BigInt, primary_key=True)
      cog_blacklist = Column(Text, nullable=True)
      welcome = Column(Text, nullable=True)
      farewell = Column(Text, nullable=True)
      prefix = Column(Text, nullable=True)
      twitter = Column(Boolean, nullable=True)
  
  
  class Member(Table):
      guild_id = Column(BigInt, primary_key=True)
      id = Column(BigInt, primary_key=True)
      plonked = Column(Boolean, nullable=True)
  
  
  class Channel(Table):
      id = Column(BigInt, primary_key=True)
      guild_id = Column(BigInt, primary_key=True)
      plonked = Column(Boolean, nullable=True)
  
subject: Correct schema