Do face down attachments count as regular attachments for cards that reference attachments (such as Wooed By Xaro, Weapons at the Door, attachment discard, etc)?

(3.22) Card Type Changes to Attachment
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Facedown attachments are also considered attachments , but with the following additional rule: If a facedown attachment leaves play for any reason, it is immediately put into its owner's discard pile. Facedown attachments have no traits, no abilities, and no card type other than "attachment."

Thanks Kevin. I knew it was in there, but I couldn't find it.