[mew-int 2526] Non-interactive attachment description

[Christophe TROESTLER]

Hi,

In a non-interactive function, after a (compose-mail ...), I can use 

     (mew-draft-prepare-attachments)
     (mew-attach-link file (file-name-nondirectory file))

to attach a file.  Is there an easy way to add a description
(mew-attach-description is purely interactive)?

Cheers,
ChriS