gistfile1.txt

iter = Enumerator.new do |yielder|
  yielder.yield "start"
  3.times { |n| yielder.yield(n) }
  yielder.yield "end"
end

# iter.each do |n|
#   puts n
# end

class Example
  include Enumerable

  def initialize
    @omg = [1, 2, 3]
  end

  def each
    @omg.each do |el|
      yield el
    end
  end
end

Example.new.each do |n|
  puts n
end