code: def chunk(self):
      return self._chunk
  
file_path: mars/mars/services/mutable/worker/core.py
imports: import bisect
  from collections import defaultdict
  import sys
  from typing import List, Union
  import numpy
  from ....None import oscar
  from ....typing import ChunkType
label_desc: Use image node_id 2 for calling the MutableTensorChunk obj's underlying member method code with example usage: obj.chunk() and returns: self