import tensorflow as tf

}


_EVAL_FEATURE_MAP = {
    movielens.USER_COLUMN: tf.FixedLenFeature([], dtype=tf.string),
    movielens.ITEM_COLUMN: tf.FixedLenFeature([], dtype=tf.string),
    rconst.DUPLICATE_MASK: tf.FixedLenFeature([], dtype=tf.string)
}


class DatasetManager(object):
  """Helper class for handling TensorFlow specific data tasks.
