# File lib/maruku/toc.rb, line 39
    def inspect(indent = 1)
      if @header_element
        s = "\_" * indent <<
          "(#{@section_level})>\t #{@section_number.join('.')} : " <<
          @header_element.children_to_s <<
          " (id: '#{@header_element.attributes[:id]}')\n"
      else
        s = "Master\n"
      end
      @section_children.each {|c| s << c.inspect(indent + 1) }

      s
    end