class_docstr: Synchronous abstraction for tracking requests.
class_docstr_tok: ["Synchronous","abstraction","for","tracking","requests","."]
code: def init_event(self):
      self.new_requests_event = asyncio.Event()
  
imports: import asyncio
  import time
  from functools import partial
  from typing import Any, Dict, Iterable, List, Optional, Set, Tuple, Type, Union
  from bigdl.llm.vllm.config import ModelConfig
  from bigdl.llm.vllm.engine.arg_utils import AsyncEngineArgs
  from bigdl.llm.vllm.engine.llm_engine import LLMEngine
  from bigdl.llm.vllm.logger import init_logger
  from bigdl.llm.vllm.outputs import RequestOutput
  from bigdl.llm.vllm.sampling_params import SamplingParams
  from bigdl.llm.utils.common import invalidInputError
label_desc: Use image node_id 3 for calling the RequestTracker obj's underlying member method code with example usage: obj.init_event() without return types