WeChat.RefreshHelper.refresh_work_access_token

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

refresh_work_access_token(client, cache_id, agent_id)

Specs

refresh_work_access_token(
  WeChat.Work.client(),
  Cache.cache_id(),
  WeChat.Work.agent_id()
) :: refresh_fun_result()