class_docstr: Non-root node of the summary data structure.
  
  Contains a path to itself from the root.
class_docstr_tok: ["Non-root","node","of","the","summary","data","structure",".","Contains","a","path","to","itself","from","the","root","."]
code: def __init__(self):
      object.__setattr__(self, "_items", dict())
      object.__setattr__(self, "_parent", None)
      object.__setattr__(self, "_parent_key", None)
  
imports: import abc
  import typing
  from .interface.summary_record import SummaryItem, SummaryRecord
label_desc: Use image node_id 1 to create a new SummarySubDict object from inherited base classes: SummaryDict with example: obj = SummarySubDict()