public void print(int indent) {
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < indent; i++) {
      sb.append("  ");
    }
    sb.append(this);
    LOGGER.info(sb.toString());
  }
Get the type of this memory block
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/memory/IMemoryBlock.java