code: function unsigncookie(val, secrets) {
    for (var i = 0; i < secrets.length; i++) {
      var result = signature.unsign(val, secrets[i]);
  
      if (result !== false) {
        return result;
      }
    }
  
    return false;
  }
docs: Verify and decode the given `val` with `secrets`.
  
  @param {String} val
  @param {Array} secrets
  @returns {String|Boolean}
  @private