@Override
    public int hashCode() {
      return target.hashCode();
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof IsEqualToPredicate) {
        IsEqualToPredicate that = (IsEqualToPredicate) obj;
        return target.equals(that.target);
      }
      return false;
    }

    @Override
    public String toString() {