Bad dunder method name

[berland]

Issue
Resolves ruff issue PLW3201

Approach
🧠

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure unit tests pass locally after every commit (git rebase -i main --exec 'pytest tests/ert/unit_tests -n logical -m "not integration_test"')

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Create Backport PR to latest release

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.87%. Comparing base (0e19012) to head (9b35a91).

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9571      +/-   ##
==========================================
- Coverage   91.87%   91.87%   -0.01%     
==========================================
  Files         433      433              
  Lines       26770    26768       -2     
==========================================
- Hits        24595    24592       -3     
- Misses       2175     2176       +1     

Flag	Coverage Δ
cli-tests	39.75% <ø> (-0.01%)	⬇️
everest-models-test	34.65% <ø> (-0.01%)	⬇️
gui-tests	72.14% <ø> (+<0.01%)	⬆️
integration-test	37.20% <ø> (+<0.01%)	⬆️
performance-tests	51.97% <ø> (+0.03%)	⬆️
test	40.44% <ø> (-0.01%)	⬇️
unit-tests	74.16% <ø> (-0.01%)	⬇️

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[codspeed-hq]

CodSpeed Performance Report

Merging #9571 will improve performances by 13.5%

_{Comparing bad-dunder-method-name (9b35a91) with main (0e19012)}

Summary

⚡ 2 improvements
✅ 20 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	bad-dunder-method-name	Change
⚡	test_load_from_context[gen_x: 20, sum_x: 20 reals: 10]	6.8 ms	6 ms	+13.5%
⚡	test_direct_dark_performance_with_storage[gen_x: 20, sum_x: 20 reals: 10-summary-get_record_observations]	1.4 ms	1.2 ms	+11.38%

[andreas-el]

Nice! ✈️