message: Added low priority param
  Summary:
  Reviewers: bigly, barath
  Subscribers: tyler
diff: @@ -580,9 +580,10 @@ Wallet.prototype.getAddress = function(params, callback) {
  * @param {(Number|String)} [gasPrice] gas price for new address creation, if applicable
  * @param {String} [label] label for the new address(es)
  * @param {Number} [count=1] number of new addresses which should be created (maximum 250)
  + * @param {Boolean} [lowPriority] Ethereum-specific param to create address using low priority fee address
  * @param callback
  */
  -Wallet.prototype.createAddress = function({ chain, gasPrice, count = 1, label, bech32 } = {}, callback) {
  +Wallet.prototype.createAddress = function({ chain, gasPrice, count = 1, label, bech32, lowPriority } = {}, callback) {
  return co(function *createAddress() {
  const addressParams = {};
  @@ -618,6 +619,13 @@ Wallet.prototype.createAddress = function({ chain, gasPrice, count = 1, label, b
  addressParams.bech32 = bech32;
  }
  + if (!_.isUndefined(lowPriority)) {
  + if (!_.isBoolean(lowPriority)) {
  + throw new Error('lowPriority has to be a boolean');
  + }
  + addressParams.lowPriority = lowPriority;
  + }
  +
  if (!_.isInteger(count) || count <= 0) {
  throw new Error('count has to be a positive integer');
  }
  