code: def test_conversion_fn(self):
      shape = (2, 3, 4)
      a = KerasTensor(shape=shape)
      b = KerasTensor(shape=shape)
      c = KerasTensor(shape=shape)
      sym_args = SymbolicArguments(
          (
              a,
              b,
          ),
          {1: c},
      )
  
      (value, _) = sym_args.convert(lambda x: x**2)
      args1 = value[0][0]
  
      self.assertIsInstance(args1, KerasTensor)
  
      mapped_value = tree.map_structure(lambda x: x**2, a)
      self.assertEqual(mapped_value.shape, args1.shape)
      self.assertEqual(mapped_value.dtype, args1.dtype)
  
file_path: keras/keras/ops/symbolic_arguments_test.py
imports: import tree
  from keras import testing
  from keras.backend import KerasTensor
  from keras.ops.symbolic_arguments import SymbolicArguments
label_desc: Use image node_id 4 for calling the SymbolicArgumentsTest obj's underlying member method code with example usage: obj.test_conversion_fn() without return types