Please bring back the inference of public interface from the `__all__` lists

[cpascual]

First of all, thanks for this amazing tool!

I wonder if there is some possibility of adding some config option to indicate tach that the expose list of an interface should be dynamically inferred from the content of the __all__ variable of the corresponding module, just like it did before 0.15.0 when we used the now-deprecated strict mode.

This would cover the use case of those of us that already maintain the definition of the public interface in __all__ .

I am aware that tach now auto-migrates tach.toml that containing strict and auto-populates the expose in the interfaces, but that is a one-time solution and forces us to either stop maintaining the __all__ values or duplicate the maintenance effort.

[cpascual]

Sorry for bumping after 2 weeks, but... would it be possible to get a hint of whether this has any chance of eventually be considered or if it goes against some hard design decision?

Without knowing the internal details, I have the impression that it would be relatively simple to use the same code that currently generates the interface expose fields when tach.toml is auto-migrated... but in this case (triggered by some config option) generating them internally every time instead of permanently changing the actual tach.toml.