@Override
  public V get(K key, Object ... args) {
    V result = instrument(metrics.numGets, metrics.getNs, () -> kvStore.get(key));
    if (result == null) {
      incCounter(metrics.numMissedLookups);
    }
    return result;
  }
Constructs an instance of {@link LocalTable}
@param tableId the table Id
@param kvStore the backing store
samza-kv/src/main/java/org/apache/samza/storage/kv/LocalTable.java