Disc Crv Issuer

Key Disc Crv Issuer in Gaussian 1d Swaption Model refers to the Issuer that identifies the yield curve to be used for providing the discounting factors needed in the pricing of all types of cash flows.
If left unspecified, the discounting factors are read off the yield curve used in the construction of the market-supplied forecasting curve.
Expects an object of type Issuer.