WeChat.Account.get_qrcode_url

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

get_qrcode_url(client, scene_id, action_name \\ "QR_LIMIT_SCENE", expire_seconds \\ 1800)

Specs

get_qrcode_url(
  WeChat.client(),
  scene_id :: String.t(),
  qrcode_action_name(),
  expire_seconds :: integer()
) :: WeChat.response() | {:ok, url :: String.t()}

生成并获取二维码链接 - 官方文档