change parse

Author: 0xodia

solend-sdk/src/core/utils/utils.ts

@@ -29,7 +29,7 @@ export const parseRateLimiter = (
     ...convertedRateLimiter,
     remainingOutflow: currentSlot
       ? remainingOutflow(currentSlot, convertedRateLimiter)
-      : undefined,
+      : null,
   };
 };