class_docstr: Benchmarks for datalad command startup
code: def time_usage_advice(self):
      call(["datalad"], env=self.env)
  
file_path: datalad/benchmarks/cli.py
imports: import os
  import sys
  import os.path
  from subprocess import call
  from .common import SuprocBenchmarks
label_desc: Use image node_id 2 for calling the startup obj's underlying member method code with example usage: obj.time_usage_advice() without return types