WeChat.CardManaging.update_card_info

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

update_card_info(client, card_id, card_type, card_info)

Specs

update_card_info(
  WeChat.client(),
  WeChat.Card.card_id(),
  WeChat.Card.card_type(),
  card_info :: map()
) :: WeChat.response()

更改卡券信息 - 官方文档