What is the authority of IPA international teacher qualification certificate for teaching Chinese as a foreign language in Beijing Normal University? Is it true that Yunnan University is a training in

What is the authority of IPA international teacher qualification certificate for teaching Chinese as a foreign language in Beijing Normal University? Is it true that Yunnan University is a training institution? What is authority? After Hanban stopped the qualification examination for teaching Chinese as a foreign language in 2006, various training institutions for teaching Chinese as a foreign language sprang up like mushrooms after rain, talking about authoritative institutions, authoritative certification and even something. As long as there are these slogans, it can be said with certainty that there is fraud. However, IPA is still relatively reliable and well-known. But if you really go abroad and have the opportunity to teach Chinese, people value your real Chinese teaching level, and it is basically useless to get a certificate.