code: def _zapfDingbatsToUnicode(glyph):
      """Helper for toUnicode()."""
      if len(glyph) < 2 or glyph[0] != "a":
          return None
      try:
          gid = int(glyph[1:])
      except ValueError:
          return None
      if gid < 0 or gid >= len(_AGL_ZAPF_DINGBATS):
          return None
      uchar = _AGL_ZAPF_DINGBATS[gid]
      return uchar if uchar != " " else None
  
file_path: catboost/contrib/python/fonttools/fontTools/agl.py
imports: from fontTools.misc.textTools import tostr
  import re
label_desc: Use image node_id 4 for calling a global function with example usage: _zapfDingbatsToUnicode(glyph) and returns: unknown, None, None, None