Change filename when sending file trough send_file method

Hey guys!
I’m newbie here. so it would be my first question)
I want to send temp file trough send_file method but I want to rename it for user, I found solution for rails but Hanami says that ArgumentError: wrong number of arguments (given 2, expected 1) when I try to:

send_file(some_tempfile.path, filename: 'pretty_name.pdf')

Is someone know any tricks to do it?
Thanks in advance!

@alextrueman Hi and sorry for the late reply due to the Easter break.

We don’t support that feature yet, would you be so kind to create an issue for that?