@miki5787 do you have this device? It could be added to the Tuya Metering Plug driver, however the second channel will use custom attributes for the power and energy reporting, which is something I am trying to avoid. And this is old driver code which becomes more and more difficult to support after adding a bunch of non-standard devices into it.
About the Generic EF00 edge driver ... see what Mariano is saying about its complexity ..
I am trying to do something similar in the latest versions of the Tuya 4 In 1 driver, will see how it goes.