code: def specs_dir(self, batch_id, token):
      return f"{self.batch_logs_root}/{batch_id}/bunch/{token}"
  
file_path: hail/batch/batch/file_store.py
imports: import asyncio
  import logging
  from typing import Optional
  import pandas
  from hailtop.aiotools.fs import AsyncFS
  from .batch_format_version import BatchFormatVersion
  from .globals import BATCH_FORMAT_VERSION
  from .resource_usage import ResourceUsageMonitor
  from .spec_writer import SpecWriter
label_desc: Use image node_id 7 for calling the FileStore obj's underlying member method code with example usage: obj.specs_dir(batch_id, token) and returns: self, str, batch_id, str, token