dc_get_classes          Get All Available Classes from Data Commons
dc_get_dcid_by_coordinates
                        Resolve DCIDs from Latitude and Longitude via
                        Data Commons
dc_get_dcids_by_name    Resolve DCIDs from Place Names via Data Commons
dc_get_dcids_by_wikidata_id
                        Resolve DCIDs from Wikidata IDs via Data
                        Commons
dc_get_node             Retrieve Node Properties from Data Commons
dc_get_observations     Retrieve Observations from Data Commons
dc_get_property_values
                        Get Property Values for Data Commons Nodes
dc_get_resolve          Resolve Nodes from Data Commons
dc_get_statistical_variables
                        Get Available Statistical Variables from Data
                        Commons
dc_has_api_key          Check if a Data Commons API key is available
dc_post_sparql          Execute a SPARQL Query via POST to the Data
                        Commons API
dc_set_api_key          Set the Data Commons API key
dc_set_base_url         Set the Data Commons base URL
