import tensorflow as tf

      data_fields["inputs"] = tf.VarLenFeature(tf.int64)

    # hack: ignoring true targets and putting dist_targets in targets
    data_items_to_decoders = {
        "inputs": tf.contrib.slim.tfexample_decoder.Tensor("inputs"),
        "targets": tf.contrib.slim.tfexample_decoder.Tensor("dist_targets"),
    }

