The ETA type system needs to let me create project-specific types

[jasoncorso]

As far as I can tell (by trying it), I cannot create a type outside of the main eta.core.types module. I think this should be configurable as an ETA config.json type variable.

[brimoor]

From the eta.core.types module docstring:

More types may be defined in other modules, but they must inherit from the
base type eta.core.types.Type defined here.

When you try to use a custom type, your environment will have to be setup such that the type string you put in your module --- e.g., "your.custom.module.Type" --- can be correctly interpreted by eta.core.types.parse_type(), which uses eta.core.utils.get_class() under-the-hood