<%=
  table = Class.new(OpPrimer::BorderBoxTableComponent) do
    columns :foo, :bar
    def self.name
      "MyTable"
    end

    def header_args(column)
      if column == :foo
        { style: "grid-column: span 3" }
      else
        super
      end
    end

    def row_class
      @clazz ||= Class.new(OpPrimer::BorderBoxRowComponent) do
        def self.name
          "MyRow"
        end

        def column_args(column)
          if column == :foo
            { style: "grid-column: span 3" }
          else
            super
          end
        end

        def foo
          "foo"
        end

        def bar
          "bar"
        end
      end
    end

    def headers
      [
        [:foo, { caption: "3 columns wide" }],
        [:bar, { caption: "1 column wide" }],
      ]
    end
  end

  render(table.new(rows: [1, 2]))
%>