@Override
    public int slots() {
        return slots;
    }
Create an instance of SkimpyOffsetMap.

@param memory The amount of memory this map can use
@param hashAlgorithm The hash algorithm instance to use: MD2, MD5, SHA-1, SHA-256, SHA-384, SHA-512
storage/src/main/java/org/apache/kafka/storage/internals/log/SkimpyOffsetMap.java