docstr: Consistent benchmarks logging
docstr_tok: ["Consistent","benchmarks","logging"]
code: def log(self, msg, *args):
      """Consistent benchmarks logging"""
      print("BM: " + str(msg % tuple(args)))
  
imports: import os
  import sys
  import tarfile
  import tempfile
  import timeit
  import os.path
  from glob import glob
  from datalad.utils import getpwd, get_tempfile_kwargs, rmtree
  from datalad.api import Dataset, create_test_dataset
label_desc: Use image node_id 5 for calling the SuprocBenchmarks obj's underlying member method code with example usage: obj.log(msg) without return types