code: def _config_file_prefix(show_origin, config, level):
      from dvc.repo import Repo
  
      if not show_origin:
          return ""
  
      level = level or "repo"
      fname = config.files[level]
  
      if level in ["local", "repo"]:
          fname = os.path.relpath(fname, start=Repo.find_root())
  
      return fname + "\t"
  
imports: import argparse
  import os
  from funcy import set_in
  from dvc.cli import formatter
  from dvc.cli.command import CmdBaseNoRepo
  from dvc.cli.utils import append_doc_link
  from dvc.log import logger
  from dvc.ui import ui
label_desc: Use image node_id 10 for calling the CmdConfig obj's underlying member method code with example usage: obj._config_file_prefix(show_origin, config, level) and returns: unknown, str