long getAbsoluteReadBytesFromIndexBasedToken(StoreFindToken indexBasedToken) throws StoreException {
    return getAbsoluteReadBytesFromIndexBasedToken(indexBasedToken, validIndexSegments);
  }
@return the absolute read bytes represented by token.
@throws StoreException
ambry-store/src/main/java/com/github/ambry/store/PersistentIndex.java