Hi, if you mean SASH bond, the inflation of USD is compensated by the projected price rate, which is determined by the market demand of SASH. This rate can reflect the subjective demand of USD to SASH.
As SASH bond being issued, the projected price rate also changes. Lets say if you spent 100usd to perches some SASH bond today, 100 days later, if USD suffers from a hyper inflation, the SASH bond that you redeemed will worth more. Because the currency you will get back after this period, is SASH not USD. When you exchange your SASH to USD, based on the projected price rate, the price of SASH to USD will be most likely higher then today.