Method _AddDecoderActivationsSummary

Adds summary about decoder activations. For each of the args, a TensorArray can also be a Tensor representing the stacked array. Args: encoder_outputs: a NestedMap computed by encoder. targets: a NestedMap, usually input_batch.tgt. atten_probs: a TensorArray of max_ta

(self,
                                    encoder_outputs,
                                    targets,
                                    atten_probs,
                                    rnn_outs,
                                    softmax_input,
                                    additional_atten_probs=None,
                                    target_alignments=None)