It is used to write a description dynamically. For example in this URL (Right now the macro is ONLY in the es-ES version):
view-source:https://www.footballhost.com/es/Tickets/FHMatchs/La-Liga-(es)/2022-04-17/La-Liga-Jornada-32-Barcelona-Cadiz
in the image it is seen how it does NOT solve, and in log it gives the initial error.:

Thank you!