class_docstr: Test the Regnet FSDP model in comparison with the DDP Regnet
  to verify that both converge to the same losses
code: def _create_model_config(depth: int):
      cfg = compose_hydra_configuration(
          [
              "config=test/integration_test/quick_knn",
              f"config.MODEL.TRUNK.RESNETS.DEPTH={depth}",
              "config.MODEL.HEAD.PARAMS=[['identity', {}]]",
          ],
      )
      args, config = convert_to_attrdict(cfg)
      return config
  
file_path: vissl/tests/test_resnext.py
imports: import unittest
  from vissl.models import build_model
  from vissl.optimizers import *
  from vissl.utils.hydra_config import compose_hydra_configuration, convert_to_attrdict
label_desc: Use image node_id 1 for calling the TestResNeXt obj's underlying member method code with example usage: obj._create_model_config(depth) and returns: config