Any way to now break the encoders/parsers passing a message part?

[ciaoben]

I would like if there is any way to use this gem and having the benefits of its management of decoders, passing a single part of a message retrieved with a fetch with:
BODY.PEEK[1]

I new to parse emails without their attachments parts, for performance reason, so once I have understood which parts to parse, I try to pass to

imap.uid_fetch uid, ['BODY.PEEK[1] BODY.PEEK[1.MIME]']
part = msg.first.attr['BODY[1]']
Mail.new part

But It seems to now fully undertand the format of the email and nothing like html_part or text_part seems to work.

Is there a "proper" way to do this?

[jeremy]

Should "just work" so long as you pass a rfc822 text from the IMAP query.