const SavedConcreteFunction* saved_concrete_func;

  // This field is only present on TF2 ConcreteFunctions, and is useful for
  // determining the original argument *names* of the function, (since the
  // "canonicalized_input_signature" may append extra uniquifying integers).
  // However, SavedBareConcreteFunctions do not have a FunctionSpec.
  // Note(bmzhao): if function_spec_.has_value(), *function_spec_ is guaranteed
  // to be non-null.

        }
      }
      input_signature {
        tuple_value {
        }
      }
    }
  }
}
concrete_functions {
  key: "__inference_my_func_5"
  value {
    canonicalized_input_signature {
      tuple_value {
        values {
          tuple_value {
          }
        }
        values {
          dict_value {
          }
        }
      }
    }

            concrete_functions.at(fn_name);
        TaggedValue input_signature = TaggedValue::Tuple();
        const RepeatedPtrField<StructuredValue>& args =
            saved_concrete_function.canonicalized_input_signature()
                .tuple_value()
                .values(0)
                .tuple_value()
                .values();
        for (const StructuredValue& arg : args) {