arc_categories          ArcGIS REST API category data base
arc_geo                 Geocoding using the ArcGIS REST API
arc_geo_categories      Geocode places on a given area by category
arc_geo_multi           Geocoding using the ArcGIS REST API with
                        multi-field query
arc_reverse_geo         Reverse Geocoding using the ArcGIS REST API
arc_spatial_references
                        ESRI (ArcGIS) Spatial Reference data base
