code: def _is_type_specifier(value):
      if not _is_dict(value) or len(value) != 1:
          return False
      name = next(iter(value))
      return name[0] == name[0].upper()
  
imports: from enum import Enum
  from typing import Any, Dict, List, Tuple, Type, Union
  from pytext.common.utils import eprint
  from .component import Registry
  from .config_adapter import upgrade_to_latest
  from .pytext_config import PyTextConfig
label_desc: Use image node_id 9 for calling a global function with example usage: _is_type_specifier(value) and returns: unknown, False