* Differentiate internal signature from external signature w.r.t. help
* Add in the --help flag to default externs in default config
* Remove unusued build_extern
Co-authored-by: mjclements <clements.michael.james@gmail.com>
* Add search terms to command
* Rename Signature desc to usage
To be named uniformly with extra_usage
* Throw in foldl search term for reduce
* Add missing usage to post
* Add search terms to signature
* Try to add capnp Signature serialization