Typecheckers see all Confuse config values as type 'object' in v2.2.0 only

[ajslater]

As of Confuse 2.2.0 both basedpyright and astral's ty typechecker see all Confuse config AttrDict values as the 'object' type, creating an enormous amount of typechecking warnings.

In this real example from my comicbox repo self.config.verbose is declared in the MappingTemplate as an Integer().
The class Printer() takes an int argument. Which typechecks fine in Confuse v2.1.0.

self._printer: Printer = Printer(self.config.verbose)   

However in Confuse 2.2.0 my typechecker shows:

ty: Argument to bound method `__init__` is incorrect: Expected `int`, found `object`                               
invalid-argument-type: Argument to bound method `__init__` is incorrect: Expected `int`, found `object`

Naturally as I use Confuse config values everywhere I see many of these type checking warnings.

The good news is this isn't a functional bug and everything still works, but it makes typing of the config object useless.

Workaround

Reverting to Confuse 2.1.0 fixes this.

Reproduction

My nudebomb repo is a reasonably small codebase that shows this.

https://github.com/ajslater/nudebomb/tree/v0.4.7

1. Checkout tag v0.4.7 onto a machine with python, uv and make.
2. make update will install the latest packages including Confuse 2.2.0
3. make typecheck will show basedpyright warnings.
4. make ty will show warnings from ty.

Identical issue also seen in my picopt and comicbox repos.

[jeberger]

Probably related: in our code base we have lots of nested config objects. Since version 2.2.0, each time we try to access config.foo.bar pyrefly reports an error like Object of class `object` has no attribute `bar` [missing-attribute]. This used to work with version 2.1.0.