# tools Contains the code-generation logic for aspects of this library: * `defs` contains common utilities and definitions for the Vocabulary. * `vocab` is the tool used to generate the Vocabulary code. * `vocab/gen` is the library that does the heavy lifting of generating the Vocabulary code. * `stream` is the tool used to generate the ActivityStream convenience code. * `stream/gen` is the library that does the heavy lifting of generating the ActivityStream convenience code.