class_docstr: Subtask graph.
class_docstr_tok: ["Subtask","graph","."]
code: def add_shuffle_proxy_subtask(self, proxy_subtask):
      self._proxy_subtasks.append(proxy_subtask)
  
imports: from enum import Enum
  from typing import Iterable, List, Optional, Set, Tuple
  from ...core import ChunkGraph, DAG, ChunkData
  from ...resource import Resource
  from ...serialization.serializables.field_type import TupleType
  from ...serialization.serializables import Serializable, StringField, ReferenceField, Int32Field, Int64Field, Float64Field, BoolField, AnyField, DictField, ListField, TupleField, FieldTypes
  from ...typing import BandType, ChunkType
label_desc: Use image node_id 3 for calling the SubtaskGraph obj's underlying member method code with example usage: obj.add_shuffle_proxy_subtask(proxy_subtask) without return types