docstr: return the description of the current benchmark
docstr_tok: ["return","the","description","of","the","current","benchmark"]
code: def desc(self):
      """return the description of the current benchmark"""
      config = self.config()
      config_str = "_".join([str(x) for x in config])
      device = self.device
      if "NNC_NUM_THREADS" in os.environ:
          num_threads_str = os.environ["NNC_NUM_THREADS"]
          device += num_threads_str
      return f"{self.engine.mode}: {self.module()}_{self.mode}_{device}_{config_str}"
  
imports: import contextlib
  import json
  import os
  import time
  import numpy
  import torch
  from .None import tensor_engine
label_desc: Use image node_id 5 for calling the Benchmark obj's underlying member method code with example usage: obj.desc() and returns: self, str, self, str, self, str, device, str, config_str