code: def ipfunc():
      """Some ipython tests...
  
      In [1]: import os
  
      In [3]: 2+3
      Out[3]: 5
  
      In [26]: for i in range(3):
         ....:     print(i, end=' ')
         ....:     print(i+1, end=' ')
         ....:
      0 1 1 2 2 3
  
  
      Examples that access the operating system work:
  
      In [1]: !echo hello
      hello
  
      In [2]: !echo hello > /tmp/foo_iptest
  
      In [3]: !cat /tmp/foo_iptest
      hello
  
      In [4]: rm -f /tmp/foo_iptest
  
      It's OK to use '_' for the last result, but do NOT try to use IPython's
      numbered history of _NN outputs, since those won't exist under the
      doctest environment:
  
      In [7]: 'hi'
      Out[7]: 'hi'
  
      In [8]: print(repr(_))
      'hi'
  
      In [7]: 3+4
      Out[7]: 7
  
      In [8]: _+3
      Out[8]: 10
  
      In [9]: ipfunc()
      Out[9]: 'ipfunc'
      """
      return "ipfunc"
  
imports: from __future__ import print_function
label_desc: Use image node_id 2 for calling a global function with example usage: ipfunc() and returns: str