connect_oxcovid19       Initiate a connection to the OxCOVID19
                        PostgreSQL database
data_sources            Data sources for OxCOVID19 Database
data_structures         Data structures for OxCOVID19 Database
get_layer               Get specified spatial layer from OxCOVID19
                        Database
get_table               Get specified table from OxCOVID19 Database
list_fields             List out field names of specific tables
                        available from OxCOVID19 Database
list_tables             List out names of tables available from
                        OxCOVID19 Database
