code: def heartbeat_event(self, info, captured_out, beat_time, result):
      self.run_entry["info"] = flatten(info)
      self.run_entry["captured_out"] = captured_out
      self.run_entry["heartbeat"] = beat_time
      self.run_entry["result"] = flatten(result)
      self.save()
  
imports: from typing import Optional, Union
  import mimetypes
  import os.path
  import pickle
  import re
  import sys
  import time
  from tempfile import NamedTemporaryFile
  import warnings
  import sacred.optional
  from sacred.commandline_options import cli_option
  from sacred.dependencies import get_digest
  from sacred.observers.base import RunObserver
  from sacred.observers.queue import QueueObserver
  from sacred.serializer import flatten
  from sacred.utils import ObserverError, PathType
  import pkg_resources
label_desc: Use image node_id 7 for calling the MongoObserver obj's underlying member method code with example usage: obj.heartbeat_event(info, captured_out, beat_time, result) without return types