class_docstr: Stores metadata about the script's progress. Only one instance is created.
class_docstr_tok: ["Stores","metadata","about","the","script","'s","progress",".","Only","one","instance","is","created","."]
code: def start_task(self):
      with self.lock:
          self.num_tasks_started += 1
          self.num_tasks_in_progress += 1
  
imports: from __future__ import annotations
  import json
  import logging
  import queue
  import threading
  import time
  import traceback
  from concurrent.futures import ThreadPoolExecutor
  from dataclasses import dataclass
  from typing import Any, Dict, List, Literal, Optional, Set, Union
  import langchain.chains
  import pydantic
  from langchain.callbacks.base import BaseCallbackHandler
  from langchain.schema import AgentAction, AIMessage, HumanMessage, SystemMessage
  from langchain.schema import ChatMessage
  from packaging.version import Version
  import mlflow
  from mlflow.exceptions import MlflowException
label_desc: Use image node_id 1 for calling the StatusTracker obj's underlying member method code with example usage: obj.start_task() without return types