docs: function CreateBucketError(err, limiterId) {
    Error.call(this);
    // captureStackTrace is V8-only (node, chrome)
    Error.captureStackTrace(this, CreateBucketError);
  
    this.id = err.id;
    this.name = 'CreateBucketError';
    this.message = util.format('%s - %s', limiterId || 'anonymous limiter', err.message);
  }