text: import argparse
  from drillsrs.cmd.command_base import CommandBase
  from drillsrs import db, util
  
  
  class DeleteCardCommand(CommandBase):
      names = ['delete-card']
      description = 'delete a single flashcard'
  
      def decorate_arg_parser(self, parser: argparse.ArgumentParser) -> None:
          parser.add_argument(
              'deck', help='choose the deck to delete the card from')
          parser.add_argument('id', type=int, help='choose the card id')
  
      def run(self, args: argparse.Namespace) -> None:
          deck_name: str = args.deck
          num: int = args.id
          with db.session_scope() as session:
              deck = db.get_deck_by_name(session, deck_name)
              card = db.get_card_by_num(session, deck, num)
              if not util.confirm(
                      'Are you sure you want to delete card #%d (%r)?'
                      % (card.num, card.question)):
                  return
              for user_answer in card.user_answers:
                  session.delete(user_answer)
              session.delete(card)
  