code: function BlockEntry(tx) {
    this.tx = tx;
    this.hash = tx.hash('hex');
    this.fee = 0;
    this.rate = 0;
    this.priority = 0;
    this.free = false;
    this.sigops = 0;
    this.descRate = 0;
    this.depCount = 0;
  }
docs: BlockEntry
  @alias module:mining.BlockEntry
  @constructor
  @param {TX} tx
  @property {TX} tx
  @property {Hash} hash
  @property {Amount} fee
  @property {Rate} rate
  @property {Number} priority
  @property {Boolean} free
  @property {Sigops} sigops
  @property {Number} depCount