### `tf.contrib.losses.add_loss(*args, **kwargs)` {#add_loss}

Adds a externally defined loss to the collection of losses. (deprecated)

THIS FUNCTION IS DEPRECATED. It will be removed after 2016-12-30.
Instructions for updating:
Use tf.losses.add_loss instead.

##### Args:


*  <b>`loss`</b>: A loss `Tensor`.
*  <b>`loss_collection`</b>: Optional collection to add the loss to.

