code: def register_subcommand(parser: ArgumentParser):
      _parser = parser.add_parser("rec.addmaskparam")
      _parser.add_argument("input", type=str, help="input rec")
      _parser.add_argument(
          "output", type=str, help="output rec, with mask param"
      )
      _parser.set_defaults(func=rec_add_mask_param_command_factory)
  
file_path: insightface/python-package/insightface/commands/rec_add_mask_param.py
imports: import numbers
  import os
  from argparse import ArgumentParser, Namespace
  import mxnet
  import numpy
  from ..app import MaskRenderer
  from ..data.rec_builder import RecBuilder
  from .None import BaseInsightFaceCLICommand
label_desc: Use image node_id 1 for calling the RecAddMaskParamCommand obj's underlying member method code with example usage: obj.register_subcommand(parser) without return types