code: def _is_unecessary(self, path: Sequence[str]) -> bool:
      if (
          self._is_property(path) or not path
      ):  # empty path => instruction @ root
          return False
      key = path[-1]
      return any(key.startswith(k) for k in "$_") or key in self._IGNORE
  
imports: import io
  import json
  import logging
  import os
  import re
  from contextlib import contextmanager
  from textwrap import indent, wrap
  from typing import Any, Dict, Iterator, List, Optional, Sequence, Union, cast
  from .fastjsonschema_exceptions import JsonSchemaValueException
label_desc: Use image node_id 4 for calling the _SummaryWriter obj's underlying member method code with example usage: obj._is_unecessary(path) and returns: unknown, False