code: def _cff_scale(visitor, args):
      for i, arg in enumerate(args):
          if not isinstance(arg, list):
              if not isinstance(arg, bytes):
                  args[i] = visitor.scale(arg)
          else:
              num_blends = arg[-1]
              _cff_scale(visitor, arg)
              arg[-1] = num_blends
  
imports: from fontTools.ttLib.ttVisitor import TTVisitor
  import fontTools.ttLib
  import fontTools.ttLib.tables.otBase
  import fontTools.ttLib.tables.otTables
  from fontTools.cffLib import VarStoreData
  import fontTools.cffLib.specializer
  from fontTools.varLib import builder
  from fontTools.misc.fixedTools import otRound
  from fontTools.ttLib.tables._g_l_y_f import VarComponentFlags
label_desc: Use image node_id 7 for calling a global function with example usage: _cff_scale(visitor, args) without return types