message: Corrected the docstring by removing 'real number'
diff: @@ -1681,12 +1681,12 @@ def poisson(y_true, y_pred):
  def cosine_similarity(y_true, y_pred, axis=-1):
  """Computes the cosine similarity between labels and predictions.
  - Note that it is a real number. When it is a negative number between -1 and 0, 0
  - indicates orthogonality and values closer to -1 indicate greater similarity.
  - This makes it usable as a loss function in a setting where you try to maximize
  - the proximity between predictions and targets. If either `y_true` or `y_pred`
  - is a zero vector, cosine similarity will be 0 regardless of the proximity
  - between predictions and targets.
  + Note that it is a number between -1 and 1. When it is a negative number between
  + -1 and 0, 0 indicates orthogonality and values closer to -1 indicate greater
  + similarity. This makes it usable as a loss function in a setting where you try
  + to maximize the proximity between predictions and targets. If either `y_true`
  + or `y_pred` is a zero vector, cosine similarity will be 0 regardless of the
  + proximity between predictions and targets.
  `loss = -sum(l2_norm(y_true) * l2_norm(y_pred))`
  