WeChat.Card.check_card_code

You're seeing just the function check_card_code, go back to WeChat.Card module for more information.
Link to this function

check_card_code(client, card_id, card_code, check_consume \\ true)

Specs

check_card_code(
  WeChat.client(),
  card_id(),
  card_code(),
  check_consume :: boolean()
) :: WeChat.response()

查询Code - 官方文档

我们强烈建议开发者在调用核销code接口之前调用查询code接口,并在核销之前对非法状态的code(如转赠中、已删除、已核销等)做出处理。