code: def test_loop_initializing_variant_variable_legal(self, n):
      tf.function(loop_initializing_variant_variable)(n)
  
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 18 for calling the NestedControlFlowTest obj's underlying member method code with example usage: obj.test_loop_initializing_variant_variable_legal(n) without return types