code: def toXML(self, writer, ttFont):
      names = sorted(self.glyphGrouping.keys())
      for glyphName in names:
          writer.simpletag(
              "glyphgroup",
              name=glyphName,
              value=self.glyphGrouping[glyphName],
          )
          writer.newline()
  
file_path: catboost/contrib/python/fonttools/fontTools/ttLib/tables/T_S_I__5.py
imports: from fontTools.misc.textTools import safeEval
  from .None import DefaultTable
  import sys
  import array
label_desc: Use image node_id 3 for calling the table_T_S_I__5 obj's underlying member method code with example usage: obj.toXML(writer, ttFont) without return types