def fieldsets
        content = ''
        each_with_rescue(@notes) do |note|
          next unless note.has_fieldset?
          content << <<-HTML
            <fieldset id="#{note.to_sym}_debug_info" style="display: none">
              <legend>#{note.legend}</legend>
              <div>#{note.content}</div>
            </fieldset>
          HTML
        end
        content
      end
def fieldsets
        content = ''
        each_with_rescue(@notes) do |note|
          next unless note.has_fieldset?
          content << <<-HTML
            <fieldset id="#{note.to_sym}_debug_info" style="display: none">
              <legend>#{note.legend}</legend>
              <div>#{note.content}</div>
            </fieldset>
          HTML
        end
        content
      end
Process notes to get their content