code: def _get(self, remote_or_db, section, opt):
      from dvc.config import ConfigError
  
      levels = self._get_appropriate_levels(self.args.level)[::-1]
  
      for level in levels:
          conf = self.config.read(level)
          if remote_or_db:
              conf = conf[remote_or_db]
  
          try:
              self._check(conf, remote_or_db, section, opt)
          except ConfigError:
              if self.args.level:
                  raise
          else:
              prefix = self._config_file_prefix(
                  self.args.show_origin, self.config, level
              )
              ui.write(prefix, conf[section][opt], sep="")
              break
  
      return 0
  
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 4 for calling the CmdConfig obj's underlying member method code with example usage: obj._get(remote_or_db, section, opt) and returns: int