message: Update docstring for keras.backend.random_normal
diff: @@ -5664,16 +5664,21 @@ def bias_add(x, bias, data_format=None):
  def random_normal(shape, mean=0.0, stddev=1.0, dtype=None, seed=None):
  """Returns a tensor with normal distribution of values.
  + It is an alias to `tf.random.normal`.
  +
  Arguments:
  shape: A tuple of integers, the shape of tensor to create.
  - mean: A float, mean of the normal distribution to draw samples.
  - stddev: A float, standard deviation of the normal distribution
  - to draw samples.
  - dtype: String, dtype of returned tensor.
  - seed: Integer, random seed.
  + mean: A float, the mean value of the normal distribution to draw samples.
  + Default to 0.0.
  + stddev: A float, the standard deviation of the normal distribution
  + to draw samples. Default to 1.0.
  + dtype: `tf.dtypes.DType`, dtype of returned tensor. Default to use Keras
  + backend dtype which is float32.
  + seed: Integer, random seed. Will use a random numpy integer when not
  + specified.
  Returns:
  - A tensor.
  + A tensor with normal distribution of values.
  """
  if dtype is None:
  dtype = floatx()
  