code: function renameCounterpartyToIssuerInOrderChanges(orderChanges) {
    return _.mapValues(orderChanges, function(changes) {
      return _.map(changes, function(change) {
        return utils.renameCounterpartyToIssuerInOrder(change);
      });
    });
  }
docs: This is just to support the legacy naming of "counterparty", this function should be removed when "issuer" is eliminated