The Block is configured very simple and works on pixel 3, xiaomi 9se and Motorola Moto x4
IT is a get with http://{plug_IP}/cm?cmnd=backlog%20blinktime%2010%3Bblinkcount%2010%3Bpower%203
I read in:
https://groups.google.com/forum/m/#!topic/automate-user/LH6CPQRkHkk
that Huawei needs a restart to Boot the collaboration with the Network permission App correctly. I will try that today afternoon and give Feedback. Maybe some emui speciality :(