** exporting cache and noweb
   :PROPERTIES:
   :DATE:     2011-02-27
   :END:
#+name: test_sleep
#+begin_src R :session :exports code
  Sys.sleep(time=5)
  1:10
#+end_src

#+name: test_sleep
#+begin_src R :session :exports results :noweb yes :cache yes
  <<test_sleep>>
#+end_src

#+name[e2c9e6c2f84563b590a765502057d92463e50182]: test_sleep
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