Simplifies DecimalAnnotation as per the Pydantic docs suggestion (emphasis mine):
While pydantic uses pydantic-core internally to handle validation and serialization, it is a new API for Pydantic V2, thus it is one of the areas most likely to be tweaked in the future and you should try to stick to the built-in constructs like those provided by annotated-types, pydantic.Field, or BeforeValidator and so on.
DecimalAnnotation
as per the Pydantic docs suggestion (emphasis mine):