class_docstr: Ray dag node used in DAG building API to mark the endpoint of DAG
class_docstr_tok: ["Ray","dag","node","used","in","DAG","building","API","to","mark","the","endpoint","of","DAG"]
code: def __str__(self) -> str:
      return get_dag_node_str(self, "__MultiOutputNode__")
  
file_path: ray/python/ray/dag/output_node.py
imports: import ray
  from typing import Any, Dict, List, Union, Tuple
  from ray.dag import DAGNode
  from ray.dag.format_utils import get_dag_node_str
  from ray.util.annotations import DeveloperAPI
label_desc: Use image node_id 4 for calling the MultiOutputNode obj's underlying member method code with example usage: obj.__str__() and returns: get_dag_node_str