List attachments.

tkt=HASH
page=WIKIPAGE
technote=HASH

At most one of technote=, tkt= or page= may be supplied.

If none are given, all attachments are listed. If one is given, only attachments for the designated technote, ticket or wiki page are shown.

HASH may be just a prefix of the relevant technical note or ticket artifact hash, in which case all attachments of all technical notes or tickets with the prefix will be listed.