media_type

# File lib/net/imap.rb, line 2484
      def media_type
        mtype = case_insensitive_string
        token = lookahead
        if token.symbol != T_SPACE
          return mtype, nil
        end
        match(T_SPACE)
        msubtype = case_insensitive_string
        return mtype, msubtype
      end