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tf.contrib.framework.reduce_sum_n

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Reduce tensors to a scalar sum.

This reduces each tensor in tensors to a scalar via tf.reduce_sum, then adds them via tf.add_n.

tensors List of tensors, all of the same numeric type.
name Tensor name, and scope for all other ops.

Total loss tensor, or None if no losses have been configured.

ValueError if losses is missing or empty.