code: function hasBlindPositionExpired(expiryTimestampString) {
      var now = new Date();
      if (expiryTimestampString) {
        var expiry = new Date(expiryTimestampString);
        return now > expiry;
      } else {
        return true;
      }
    }
docs: /*
  Checks whether the current Blind Position has expired.