gistfile1.rb

# capture a yaml dump of an object like this:
#  capture { y request }
module Kernel
  def capture # pass a block to capture
     old_stdout = $stdout
     out = StringIO.new
     $stdout = out
     begin
        yield
     ensure
        $stdout = old_stdout
     end
     out.string
  end
  module_function :capture
end