code: def vmoveto(args):
      if len(args) != 1:
          raise ValueError(args)
      yield ("rmoveto", [0, args[0]])
  
imports: from fontTools.cffLib import maxStackLimit
label_desc: Use image node_id 3 for calling the _GeneralizerDecombinerCommandsMap obj's underlying member method code with example usage: obj.vmoveto(args) without return types