Consider adding too-many-statements ruff rule

[korikuzma]

After this comment, I think we should consider adding this rule

https://docs.astral.sh/ruff/rules/too-many-statements/

too-many-statements (PLR0915)#

Derived from the Pylint linter.
What it does#

Checks for functions or methods with too many statements.

By default, this rule allows up to 50 statements, as configured by the lint.pylint.max-statements option.
Why is this bad?#

Functions or methods with many statements are harder to understand and maintain.

Instead, consider refactoring the function or method into smaller functions or methods, or identifying generalizable patterns and replacing them with generic logic or abstractions.

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[korikuzma]

I'd still like this. @jsstevenson what do you think?

[jsstevenson]

don't personally feel too strongly about this? I'd say it's better to leave room for some subjectivity, so I'd propose a pretty lax limit (something in the range of 60 or 70?)