code: def _get_normal_name(orig_enc):
      """Imitates get_normal_name in tokenizer.c."""
      # Only care about the first 12 characters.
      enc = orig_enc[:12].lower().replace("_", "-")
      if enc == "utf-8" or enc.startswith("utf-8-"):
          return "utf-8"
      if enc in (
          "latin-1",
          "iso-8859-1",
          "iso-latin-1",
      ) or enc.startswith(("latin-1-", "iso-8859-1-", "iso-latin-1-")):
          return "iso-8859-1"
      return orig_enc
  
imports: from builtins import open
  from codecs import lookup, BOM_UTF8
  import collections
  import functools
  from io import TextIOWrapper
  import itertools
  import re
  import sys
  from token import *
  from token import EXACT_TOKEN_TYPES
  import token
label_desc: Use image node_id 7 for calling a global function with example usage: _get_normal_name(orig_enc) and returns: orig_enc, str, str