def parse(node)
      node.xpath('*').each do |node_child|
        case node_child.name
        when 'blipFill'
          @path_to_image = DocxBlip.new(parent: self).parse(node_child)
        when 'spPr'
          @properties = DocxShapeProperties.new(parent: self).parse(node_child)
        when 'nvPicPr'
          @non_visual_properties = NonVisualShapeProperties.new(parent: self).parse(node_child)
        end
      end
      self
    end
def parse(node)
      node.xpath('*').each do |node_child|
        case node_child.name
        when 'blipFill'
          @path_to_image = DocxBlip.new(parent: self).parse(node_child)
        when 'spPr'
          @properties = DocxShapeProperties.new(parent: self).parse(node_child)
        when 'nvPicPr'
          @non_visual_properties = NonVisualShapeProperties.new(parent: self).parse(node_child)
        end
      end
      self
    end
Parse DocxPicture object
 @param node [Nokogiri::XML:Element] node to parse
 @return [DocxPicture] result of parsing