Identify the ancient dynasty with the help of the following information:
1. They issued spectacular gold coins.
2. Their history can be reconstructed through Prashastis.
3. Harisena was the court poet of one of its rulers.
The correct IUPAC name of \([ \text{Pt}(\text{NH}_3)_2\text{Cl}_2 ]^{2+} \) is: