}

func AssertEqual(x, y interface{}) bool {
	if reflect.DeepEqual(x, y) {
		return true
	}
	if x == nil || y == nil {
		return false
	}

	xval := reflect.ValueOf(x)
	yval := reflect.ValueOf(y)
	if xval.Kind() == reflect.Ptr && xval.IsNil() ||
		yval.Kind() == reflect.Ptr && yval.IsNil() {
		return false
	}

	if valuer, ok := x.(driver.Valuer); ok {
		x, _ = valuer.Value()
	}

  y = variables.Variable(1.0, name='y')
  updates = control_flow_ops.no_op()
  for _ in range(3):
    with ops.control_dependencies([updates]):
      x_val = x.read_value() + y
      updates = x.assign_sub(0.1 * x_val)

  array_ops.identity(updates, name='result')


def write_graph(build_graph, out_dir):
  """Build a graph using build_graph and write it out."""
  g = ops.Graph()