code: def unescape(text: str) -> str:
      """Unescape escaped text."""
      c = UnescapeTreeprocessor()
      return c.unescape(text)
  
imports: from __future__ import annotations
  from .None import Extension
  from ..treeprocessors import Treeprocessor
  from ..util import code_escape, parseBoolValue, AMP_SUBSTITUTE, HTML_PLACEHOLDER_RE, AtomicString
  from ..treeprocessors import UnescapeTreeprocessor
  import re
  import html
  import unicodedata
  import xml.etree.ElementTree
  from typing import TYPE_CHECKING, Any, Iterator, MutableSet
label_desc: Use image node_id 6 for calling a global function with example usage: unescape(text) and returns: c