code: def if_nested_with_modification_of_global(x):
      y = 0
      if x > 0:
          if x > 0:
              global _test_global
              if _test_global is None:
                  _test_global = 1
              else:
                  _test_global += 1
              y += _test_global
      return y
  
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 6 for calling a global function with example usage: if_nested_with_modification_of_global(x) and returns: y