This option is a foot-gun, even the tests are wrong sincetrue doesn't mean anything for it.
Also because eg disabling auto-escaping breaks forms / emails, which expect anhtml escaping strategy.

I therefore propose to deprecate optionautoescape and to keepautoescape_service +autoescape_service_method, which are more capable, and will require ppl to think twice before returningfalse.

For ppl that need a custom escaping strategy, you'll likely want to use/take inspiration fromFileExtensionEscapingStrategy::guess() in your implementation.