message: chore(core): fix linter errors
  Ticket:
diff: @@ -1668,7 +1668,7 @@ export class BitGo {
  if (!_.isArray(params.ipRestrict)) {
  throw new Error('ipRestrict must be an array');
  }
  - _.forEach(params.ipRestrict, function(ipAddr) {
  + _.forEach(params.ipRestrict, (ipAddr) => {
  if (!_.isString(ipAddr)) {
  throw new Error('ipRestrict must be an array of IP address strings');
  }
  @@ -2330,7 +2330,7 @@ export class BitGo {
  */
  getConstants(params?: Record<string, never>) {
  // kick off a fresh request for the client constants
  - this.fetchConstants(params, function(err) {
  + this.fetchConstants(params, (err) => {
  if (err) {
  // make sure an error does not terminate the entire script
  console.error('failed to fetch client constants from BitGo');
  