@TestOnly
  public void setPipeTaskReferenceCount(int pipeTaskReferenceCount) {
    this.pipeTaskReferenceCount.set(pipeTaskReferenceCount);
  }
Only the default implementation is provided here, which will not be called in practice, but is
only used to implement the interface
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/consensus/deletion/DeletionResource.java