gpo_collections         Retrieve GPO collections data
gpo_package_granules    Given a GPO package id, get a list of granules
                        associated with that package.
gpo_package_granules_summary
                        Given a package id and a granule id, return a
                        metadata summary for the granule.
gpo_package_summary     Given a GPO package id, return summary metadata
                        for that package.
gpo_published           Retrieve documents based on official
                        publication date.
gpo_related             gpo_related()
key                     Check or Get GovInfo API Key
next_req                next_req
set_govinfo_key         Adds api.data.gov key to .Renviron
today                   today
tomorrow                tomorrow
yesterday               yesterday
