code: def _get_commands(self):
      return self.Commands(
          url=["git", "ls-remote", "--get-url"],
          branch=[
              "git",
              "rev-parse",
              "--abbrev-ref",
              "--symbolic-full-name",
              "@{u}",
          ],
          commit=["git", "rev-parse", "HEAD"],
          root=["git", "rev-parse", "--show-toplevel"],
          status=["git", "status", "-s"],
          diff=["git", "diff", "--submodule=diff", "HEAD"],
          modified=["git", "ls-files", "-m"],
          branch_fallback=["git", "rev-parse", "--abbrev-ref", "HEAD"],
          diff_fallback=["git", "diff", "HEAD"],
          diff_remote=[
              "git",
              "diff",
              "--submodule=diff",
          ],
          commit_remote=[
              "git",
              "rev-parse",
          ],
          diff_fallback_remote=[
              "git",
              "diff",
          ],
      )
  
imports: import abc
  import os
  from subprocess import call, CalledProcessError
  import attr
  import six
  from pathlib2 import Path
  from ....config.defs import VCS_REPO_TYPE, VCS_DIFF, VCS_STATUS, VCS_ROOT, VCS_BRANCH, VCS_COMMIT_ID, VCS_REPOSITORY_URL
  from ....debugging import get_logger
  from .util import get_command_output
label_desc: Use image node_id 2 for calling the GitDetector obj's underlying member method code with example usage: obj._get_commands() and returns: self