w_data                  Request data from a Webstat dataset.
w_datasets              List all the available datasets from Webstat
                        (codes and names) in a table. No arguments.
w_meta                  Get metadata from a dataframe returned by
                        w_data function
w_search                Search keyword inside dataset catalogue or
                        series catalogue
w_series_list           List the available series from a dataset.
w_structure             Get the structure of a dataset
