public static PipeConfigNodeTaskAgent task() {
    return PipeConfigNodeAgentHolder.HANDLE.pipeConfigNodeTaskAgent;
  }
Get the singleton instance of {@link PipeConfigNodeTaskAgent}.

@return the singleton instance of {@link PipeConfigNodeTaskAgent}
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/pipe/agent/PipeConfigNodeAgent.java