specify class attributes in style guide

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 80.59%. Comparing base (86bebba) to head (b19e5bf).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1461 +/- ## ======================================= Coverage 80.59% 80.59% ======================================= Files 94 94 Lines 5988 5988 ======================================= Hits 4826 4826 Misses 1162 1162 ``` | [Flag](https://app.codecov.io/gh/delvtech/agent0/pull/1461/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/delvtech/agent0/pull/1461/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech) | `80.59% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech#carryforward-flags-in-the-pull-request-comment) to find out more.

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