add_info (PDF::Writer)

          # File lib/pdf/writer.rb, line 1805
    1805:   def add_info(label, value = 0)
    1806:       # This will only work if the label is one of the valid ones. Modify
    1807:       # this so that arrays can be passed as well. If @label is an array
    1808:       # then assume that it is key => value pairs else assume that they are
    1809:       # both scalar, anything else will probably error.
    1810:     if label.kind_of?(Hash)
    1811:       label.each { |kk, vv| @info.__send__(kk.downcase.intern, vv) }
    1812:     else
    1813:       @info.__send__(label.downcase.intern, value)
    1814:     end
    1815:   end