code: def _update_bcbiovm():
      
      print("## CWL support with bcbio-vm")
      python_env = "python=3"
      conda_bin, env_name = _add_environment("bcbiovm", python_env)
      channels = _get_conda_channels(conda_bin)
      base_cmd = [conda_bin, "install", "--yes", "--name", env_name] + channels
      subprocess.check_call(base_cmd + [python_env, "nomkl", "bcbio-nextgen"])
      extra_uptodate = ["cromwell"]
      subprocess.check_call(base_cmd + [python_env, "bcbio-nextgen-vm"] + extra_uptodate)
docs: Update or install a local bcbiovm install with tools and dependencies.