Fix events example and improve doc comments

[Shatur]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.44%. Comparing base (7581814) to head (a263844).
Report is 1 commits behind head on master.

❗ Current head a263844 differs from pull request most recent head 7033c2c

Please upload reports for the commit 7033c2c to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #285      +/-   ##
==========================================
- Coverage   90.94%   90.44%   -0.50%     
==========================================
  Files          38       36       -2     
  Lines        2329     2197     -132     
==========================================
- Hits         2118     1987     -131     
+ Misses        211      210       -1     

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