IsInUpiId
Determines whether a given input is a valid UPI (Unified Payments Interface) ID.
This class extends the Function class and provides a method to check if a given input is a valid UPI (Unified Payments Interface) ID.. The implementation follows the specified validation rules.
The IsInUpiId class is meant to be instantiated and used to validate UPI (Unified Payments Interface) ID. It inherits common functionality from the Function base class.