code: def return_possibly_undefined(x):
      if x > 0:
          if x < 5:
              return x
      else:
          return x * x * x
  
imports: import itertools
  from absl.testing import parameterized
  import tensorflow
  from tensorflow.python.autograph.tests import reference_test_base
label_desc: Use image node_id 3 for calling a global function with example usage: return_possibly_undefined(x) and returns: unknown, x