code: def _get_ngc_doc_url(model_name: str, model_prefix: str = "") -> str:
      return f"https://ngc.nvidia.com/catalog/models/{model_prefix}{model_name}"
  
imports: from __future__ import annotations
  import json
  import os
  import warnings
  from collections.abc import Mapping
  from pathlib import Path
  from typing import Any
  import torch
  import monai.networks.nets
  from monai.apps.utils import download_and_extract, logger
  from monai.config.type_definitions import PathLike
  from monai.networks.utils import copy_model_state
  from monai.utils.module import optional_import
  from .model_desc import MODEL_DESC
  from .model_desc import RemoteMMARKeys
label_desc: Use image node_id 4 for calling a global function with example usage: _get_ngc_doc_url(model_name, model_prefix) and returns: str, model_prefix, model_name