docs: int get(int rowSize) {
  
          if (lookup.size() == 0) {
              return -1;
          }
  
          int index = lookup.findFirstGreaterEqualKeyIndex(rowSize);
  
          if (index == -1) {
              return -1;
          }
  
          // statistics for successful requests only - to be used later for midSize
          requestCount++;
  
          requestSize += rowSize;
  
          int length     = lookup.getValue(index);
          int difference = length - rowSize;
          int key        = lookup.getKey(index);
  
          lookup.remove(index);
  
          if (difference >= midSize) {
              int pos = key + (rowSize / scale);
  
              lookup.add(pos, difference);
          } else {
              lostFreeBlockSize += difference;
          }
  
          return key;
      }