gistfile1.ex

defmodule RandomModule do
  defmacro __using__(module) do
    quote do
      import RandomModule

      Module.register_attribute __MODULE__, :attributes, accumulate: true

      def run do
        RandomModule.run @attributes
      end
    end
  end

  def run(attributes) do
    IO.puts attributes
  end

  defmacro attribute(name) do
    quote do: @attributes unquote(name)
  end
end

# Then used as this

defmodule DSL do
  use RandomModule

  attribute :name
  attribute :id
end

DSL.run # should output my attributes