The subject disclosure relates to a method and system for packaging a post-processed definition of a programming module. Contents of a constraint-based and/or order-independent execution model are received, in which the contents include a declarative source code. The contents are stored into an extensible storage abstraction such that the source code is stored in a declarative format. Metadata describing attributes of the contents stored in the extensible storage abstraction is also defined. A file is then created, which includes the extensible storage abstraction and the metadata.