Should we manage product_types in a global space?

[shuoli84]

Product_types is the key to do cross tasks communication, now most tasks just use a text constant which not a proper way to enforce or discover the product_types. In my mind, product_types is in the same category as mime, http headers, which helps if we have a global place for the standard ones, and also leaves some slots for customization.

Not sure whether it is overkill though :)

[stuhood]

FWIW: A few of us are working on implementing an alternative to the existing ("v1") Task API. Over the next few quarters, we hope to port a portion of the python pipeline to a v2 @rule UX. See the document linked from #5440

[stuhood]

Closing this one as answered.