private boolean isWithinRange(long start, long end, long reference) {
    return start <= reference && reference < end;
  }
Determine if a given reference is within the boundary defined by the given start (inclusive) and end (exclusive)
@param start the start of the bound (inclusive)
@param end the end of the bound (exclusive)
@param reference the reference to check against the boundary defined by start and end
@return true if the reference is within the boundary, false otherwise
ambry-store/src/main/java/com/github/ambry/store/BlobStoreStats.java