WeChat.UserTag.get_tag_users

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

get_tag_users(client, id)

Specs

get_tag_users(WeChat.client(), tag_id()) :: WeChat.response()

获取标签下粉丝列表 - 官方文档

Link to this function

get_tag_users(client, id, next_openid)

Specs

get_tag_users(WeChat.client(), tag_id(), next_openid :: WeChat.openid()) ::
  WeChat.response()

获取标签下粉丝列表 - 翻页 - 官方文档