class_docstr: Analogous to the SummaryItem protobuf message.
code: def __init__(self):
      self.key = tuple()
      self.value = None
  
file_path: wandb/wandb/sdk/interface/summary_record.py
imports: import typing
label_desc: Use image node_id 1 to create a new SummaryItem object  with example: obj = SummaryItem()