def parse(node)
      node.xpath('*').each do |node_child|
        case node_child.name
        when 'alias'
          @alias = ValuedChild.new(:string, parent: self).parse(node_child)
        when 'tag'
          @tag = ValuedChild.new(:string, parent: self).parse(node_child)
        when 'lock'
          @lock = ValuedChild.new(:symbol, parent: self).parse(node_child)
        end
      end
      self
    end
def parse(node)
      node.xpath('*').each do |node_child|
        case node_child.name
        when 'alias'
          @alias = ValuedChild.new(:string, parent: self).parse(node_child)
        when 'tag'
          @tag = ValuedChild.new(:string, parent: self).parse(node_child)
        when 'lock'
          @lock = ValuedChild.new(:symbol, parent: self).parse(node_child)
        end
      end
      self
    end
Parse SDTProperties object
 @param node [Nokogiri::XML:Element] node to parse
 @return [SDTProperties] result of parsing