docs: public Closure<V> memoizeAtLeast(final int protectedCacheSize) {
          if (protectedCacheSize < 0) throw new IllegalArgumentException("A non-negative number is required as the protectedCacheSize parameter for memoizeAtLeast.");
  
          return Memoize.buildSoftReferenceMemoizeFunction(protectedCacheSize, new ConcurrentSoftCache<Object, Object>(), this);
      }