code: def adam(parser):
      """Add arguments."""
      parser.add_argument(
          "--lr", type=float, default=1e-3, help="Learning rate"
      )
      parser.add_argument(
          "--beta1", type=float, default=0.9, help="Beta1"
      )
      parser.add_argument(
          "--beta2", type=float, default=0.999, help="Beta2"
      )
      parser.add_argument(
          "--weight-decay", type=float, default=0.0, help="Weight decay"
      )
      return parser
  
label_desc: Use image node_id 2 for calling a global function with example usage: adam(parser) and returns: parser