code: def shape(self) -> torch.Size:
      if self.tensor_meta is None:
          raise ValueError("tensor_meta is not set")
      return self.tensor_meta.shape
  
imports: from dataclasses import dataclass
  from typing import Any, cast, List, NamedTuple, Optional, Tuple
  import torch
  import torch.distributed._functional_collectives
  import torch.distributed.distributed_c10d
  from torch.distributed._tensor._collective_utils import mesh_broadcast, mesh_scatter
  from torch.distributed.device_mesh import DeviceMesh
label_desc: Use image node_id 7 for calling the DTensorSpec obj's underlying member method code with example usage: obj.shape() and returns: self