Unable to set parameter names on methods

[dakotahorstman]

Describe the bug

UaExpert nor TwinCat shows any names for parameters of methods registered with asyncua. This causes major confusion, especially when imported into something like TwinCat, where you can't make heads or tails of which parameter is which.

To Reproduce

Run examples/server-methods.py. Produces the screenshot above for func_async.

Expected behavior

There to be names associated with parameters, such as with Server.RequestServerStateChange in the OPC tree:

Or Server.GetMonitoredItems which also has named Output Arguments:

Screenshots

One of my methods as it is imported into TwinCat 3 4026:

Version

Python-Version: 3.12.11

opcua-asyncio Version (e.g. master branch, 0.9): 1.1.6

[AndreasHeine]

pass ua.Argument classes instead of ua.Variant classes in method definition!

[AndreasHeine]

see

https://github.com/FreeOpcUa/opcua-asyncio/blob/master/examples%2Fserver-extension-object-as-method-argument.py

[dakotahorstman]

I never would have found this. Should definitely add this to the docs here. Thank you!