code: def _glyphName(self, glyph):
      try:
          name = glyph.glyph
      except AttributeError:
          name = glyph
      return ast.GlyphName(self._glyph_map.get(name, name))
  
imports: import logging
  import re
  from io import StringIO
  from fontTools.feaLib import ast
  from fontTools.ttLib import TTFont, TTLibError
  from fontTools.voltLib import ast
  from fontTools.voltLib.parser import Parser
label_desc: Use image node_id 7 for calling the VoltToFea obj's underlying member method code with example usage: obj._glyphName(glyph) and returns: ast