def parse(node)
      node.xpath('*').each do |node_child|
        case node_child.name
        when 'cNvPr'
          @common_properties = CommonNonVisualProperties.new(parent: self).parse(node_child)
        when 'nvPr'
          @non_visual_properties = NonVisualProperties.new(parent: self).parse(node_child)
        end
      end
      self
    end
def parse(node)
      node.xpath('*').each do |node_child|
        case node_child.name
        when 'cNvPr'
          @common_properties = CommonNonVisualProperties.new(parent: self).parse(node_child)
        when 'nvPr'
          @non_visual_properties = NonVisualProperties.new(parent: self).parse(node_child)
        end
      end
      self
    end
Parse NonVisualShapeProperties object
 @param node [Nokogiri::XML:Element] node to parse
 @return [NonVisualShapeProperties] result of parsing