code: def get_model_trunk(name: str):
      """
      Given the model trunk name, construct the trunk if it's registered
      with VISSL.
      """
      assert name in MODEL_TRUNKS_REGISTRY, "Unknown model trunk"
      return MODEL_TRUNKS_REGISTRY[name]
  
imports: from pathlib import Path
  from typing import Callable
  from classy_vision.generic.registry_utils import import_all_modules
label_desc: Use image node_id 2 for calling a global function with example usage: get_model_trunk(name) and returns: MODEL_TRUNKS_REGISTRY