It returns an embed with the following information for the specified line:
Line Name: The name of the line.
Status and Description: The current operational status of the line, including causes and advice for passengers.
For example, if the Jubilee line is part suspended due to a signal failure, the status will show as:
Jubilee Line
Jubilee Line: No service between Waterloo and Stanmore while we fix a signal failure at Charing Cross. Tickets are being accepted on London Underground and London Buses via any reasonable route.