code: def test_nested_for(self, a, type_, target):
      a = type_(a)
      self.assertFunctionMatchesEager(target, a)
  
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 4 for calling the LoopControlFlowTest obj's underlying member method code with example usage: obj.test_nested_for(a, type_, target) without return types