# File lib/soap/element.rb, line 127
  def root_node
    @data.each do |node|
      if node.root == 1
        return node
      end
    end
    # No specified root...
    @data.each do |node|
      if node.root != 0
        return node
      end
    end

    raise Parser::FormatDecodeError.new('no root element')
  end