code: def _interactive_mode(self):
      ret = 1
      while True:
          try:
              target = input()
          except (KeyboardInterrupt, EOFError):
              break
          if not target:
              break
          if not self._check_one_file(target):
              ret = 0
      return ret
  
file_path: dvc/dvc/commands/check_ignore.py
imports: from dvc.cli import completion, formatter
  from dvc.cli.command import CmdBase
  from dvc.cli.utils import append_doc_link
  from dvc.ui import ui
label_desc: Use image node_id 4 for calling the CmdCheckIgnore obj's underlying member method code with example usage: obj._interactive_mode() and returns: ret