code: def mapFeatures(self, featureMap):
      for s in self.ScriptRecord:
          if not s or not s.Script:
              continue
          s.Script.mapFeatures(featureMap)
  
imports: from fontTools import ttLib
  from fontTools.ttLib.tables.DefaultTable import DefaultTable
  from fontTools.ttLib.tables import otTables
  from fontTools.merge.base import add_method, mergeObjects
  from fontTools.merge.util import *
  import logging
label_desc: Use image node_id 20 for calling a global function with example usage: mapFeatures(featureMap) without return types