(character(1))
The first series ID (e.g., "SEKUSDPMI").
series2
(character(1))
The second series ID (e.g., "SEKEURPMI").
start_date
(NULL | Date(1) | character(1))
Start date of the data (e.g., "2024-01-01"). If NULL, all available data is returned.
Default NULL.
end_date
(NULL | Date(1) | character(1))
End date of the data, in the same format as start_date. If NULL, data up to the latest
available date is returned. Default NULL.