'examples' directory contains small refactoring of Python code which is unlikely to cause issues.
The PR also includes minor adjustments in some files under 'src/aleph/sdk', these changes are likely to be minimal and do not introduce new bugs or have a high risk.
Please note that this categorization may vary depending on the specific rules set by the user.
I hope this helps, and let me know if you need further assistance with your PR analysis.
Problem: new version of black invalidates prior formatting
Solution: update black and reformat files