get_population          Get population data for a specific release
get_psgc                Get PSGC data for a specific release
get_psgc_wide           Get PSGC data in wide (denormalised) format
latest_release          The most recent bundled PSGC release
list_releases           List available PSGC releases
map_psgc                Map PSGC codes to a target release
psgc_info               Get metadata for one or more PSGC codes
