class_docstr: Abstract base class for grouped `nn.Embedding` and `nn.EmbeddingBag`
code: def config(self) -> GroupedEmbeddingConfig:
      pass
  
file_path: torchrec/torchrec/distributed/embedding_kernel.py
imports: import abc
  import logging
  from collections import defaultdict, OrderedDict
  from typing import Any, Dict, List, Optional, Tuple, Union
  import torch
  import torch.distributed
  from torch import nn
  from torchrec.distributed.embedding_types import EmbeddingComputeKernel, GroupedEmbeddingConfig, ShardedEmbeddingTable
  from torchrec.distributed.types import Shard, ShardedTensor, ShardedTensorMetadata
  from torchrec.sparse.jagged_tensor import KeyedJaggedTensor
label_desc: Use image node_id 2 for calling the BaseEmbedding obj's underlying member method code with example usage: obj.config() without return types