code: def test_fill_in_multiple_arg(self):
      shape = (2, 3, 4)
      a = KerasTensor(shape=shape)
      b = KerasTensor(shape=shape)
  
      tensor_dict = {id(b): 2}
      sym_args = SymbolicArguments((a, b))
  
      # Call the method to be tested
      result, _ = sym_args.fill_in(tensor_dict)
  
      self.assertEqual(result, ((a, 2),))
  
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 6 for calling the SymbolicArgumentsTest obj's underlying member method code with example usage: obj.test_fill_in_multiple_arg() without return types