class_docstr: PerformanceProfiler to analysis the time profiler.
class_docstr_tok: ["PerformanceProfiler","to","analysis","the","time","profiler","."]
code: def __getitem__(self, item):
      return self.pipes_profiler[item]
  
imports: import json
  from typing import Dict, List
  from tabulate import tabulate
  from copy import deepcopy
  from pathlib import Path
  from towhee.runtime.constants import WindowAllConst
  from towhee.runtime.time_profiler import Event
  from towhee.utils.log import engine_log
label_desc: Use image node_id 8 for calling the PerformanceProfiler obj's underlying member method code with example usage: obj.__getitem__(item) and returns: self