def parse(node)
      node.attributes.each do |key, value|
        case key
        when 'num'
          @count = value.value.to_i
        when 'sep'
          @separator = value.value
        when 'equalWidth'
          @equal_width = option_enabled?(node, 'equalWidth')
        when 'space'
          @space = OoxmlSize.new(value.value.to_f)
        end
      end

      node.xpath('*').each do |column_node|
        case column_node.name
        when 'col'
          @column_array << Column.new(parent: self).parse(column_node)
        end
      end
      self
    end
def parse(node)
      node.attributes.each do |key, value|
        case key
        when 'num'
          @count = value.value.to_i
        when 'sep'
          @separator = value.value
        when 'equalWidth'
          @equal_width = option_enabled?(node, 'equalWidth')
        when 'space'
          @space = OoxmlSize.new(value.value.to_f)
        end
      end

      node.xpath('*').each do |column_node|
        case column_node.name
        when 'col'
          @column_array << Column.new(parent: self).parse(column_node)
        end
      end
      self
    end
Parse Columns data
 @param [Nokogiri::XML:Element] node with Columns data
 @return [Columns] value of Columns data