Add of the aggregation functionnality

[kawkawa99]

The aim of this pull request is to add the functionality of requesting aggregates from the server using the "ReadProcessedDetails" low level function by adding a high level function "Read_processed_history" similar to the "Read_raw_history" high level function.

[oroulet]

give the MR a sensible name and fix the tests

[kawkawa99]

I have updated the function, what can I do about the tests ?

[oroulet]

I have updated the function, what can I do about the tests ?

the name of the merge request here is still "first commit"... not very explicit...

The tests? if you click on the failing pipelines over you can see that it is lintingt failing. so try to run "ruff" on you code and fix the errors it gives you

[kawkawa99]

I just read the details, but can't figure out how to solve them. can someone help ?

[kawkawa99]

Knowing that I did the tests locally and the function worked with no errors.

[oroulet]

next step is to install ruff and run it on your code. It show clearly at least one error

[kawkawa99]

I just installed ruff and executed it on the modified script, but it doesn't show any error :

[oroulet]

you have a proble on your system then. but then you can also use the output of the CI on gihub: https://github.com/FreeOpcUa/opcua-asyncio/actions/runs/5936420662/job/16096791948?pr=1389 what needs fixing is quite clear