code: def add_args(parser):
      # Add some command-line arguments for specifying where the data is
      # located and the maximum supported input length.
      parser.add_argument(
          "taskconfig",
          metavar="FILE",
          help=(
              "taskconfig to load all configurations"
              "outside fairseq parser."
          ),
      )
  
file_path: fairseq/examples/MMPT/mmpt/tasks/fairseqmmtask.py
imports: import random
  from fairseq.tasks import LegacyFairseqTask, register_task
  from .task import Task
  from .retritask import RetriTask
  from ..datasets import FairseqMMDataset
  from ..None import utils
label_desc: Use image node_id 1 for calling the FairseqMMTask obj's underlying member method code with example usage: obj.add_args(parser) without return types