code: def if_imbalanced_nested(a):
      x = {"a": {"a": a}}
  
      if x["a"]["a"] > 0:
          x["a"]["b"] = 1
      return 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 5 for calling a global function with example usage: if_imbalanced_nested(a) and returns: x