.setNumReducers(reduceShardCount)
.build();
}
private MapSpecification<Key, Void, Void> getDeleteJobSpec(int mapShardCount) {
DatastoreKeyInput input = new DatastoreKeyInput(datastoreType, mapShardCount);
DeleteEntityMapper mapper = new DeleteEntityMapper();
return new MapSpecification.Builder<Key, Void, Void>(input, mapper)
.setJobName("Delete MapReduce entities")
.build();
}