code: def forward(self, features: KeyedJaggedTensor) -> KeyedTensor:
      return self.ebc(features)
  
imports: import unittest
  from typing import List
  import torch
  from hypothesis import given, settings, strategies, Verbosity
  from torch import nn
  from torchrec.distributed.model_parallel import DistributedModelParallel
  from torchrec.distributed.types import ShardingEnv
  from torchrec.modules.embedding_configs import DataType, EmbeddingBagConfig
  from torchrec.modules.embedding_modules import EmbeddingBagCollection
  from torchrec.quant.embedding_modules import EmbeddingBagCollection
  from torchrec.quant.utils import meta_to_cpu_placement
  from torchrec.sparse.jagged_tensor import KeyedJaggedTensor, KeyedTensor
label_desc: Use image node_id 2 for calling the TestSparseArch obj's underlying member method code with example usage: obj.forward(features) and returns: self