public CassandraStorage.Builder toBuilder() {
    return CassandraStorage.newBuilder()
      .keyspace(keyspace)
      .contactPoints(contactPoints)
      .localDc(localDc)
      .maxConnections(maxConnections)
      .ensureSchema(ensureSchema)
      .useSsl(useSsl)
      .sslHostnameValidation(sslHostnameValidation)
      .username(username)
      .password(password)
      .indexFetchMultiplier(indexFetchMultiplier);
  }
See {@link CassandraStorage.Builder#indexFetchMultiplier(int)}
zipkin-server/src/main/java/zipkin2/server/internal/cassandra3/ZipkinCassandra3StorageProperties.java