code: def cancel(self, context_id: str) -> bool:
      item = self.get(context_id)
      if item:
          item.cancel()
          return True
      return False
  
file_path: wandb/wandb/sdk/internal/context.py
imports: import logging
  import threading
  from typing import Dict, Optional
  from wandb.proto.wandb_internal_pb2 import Record, Result
label_desc: Use image node_id 6 for calling the ContextKeeper obj's underlying member method code with example usage: obj.cancel(context_id) and returns: False, True