code: def test_unaffected_nonlocal(self):
      def f(i):
          def inner_fn():
              nonlocal n
              if i == 0:
                  n = i - 1
  
          n = 3
          inner_fn()
          return n
  
      self.assertTransformedResult(f, 1, 3)
      self.assertTransformedResult(f, 0, -1)
  
imports: import collections
  from nvidia.dali._autograph.converters import break_statements
  from nvidia.dali._autograph.converters import continue_statements
  from nvidia.dali._autograph.converters import control_flow
  from nvidia.dali._autograph.core import converter_testing
  from nvidia.dali._autograph.utils.all_utils import custom_constant
label_desc: Use image node_id 14 for calling the IfStatementTest obj's underlying member method code with example usage: obj.test_unaffected_nonlocal() and returns: n