code: def numel(self) -> int:
      return int(np.prod(self.size))
  
imports: from __future__ import annotations
  import warnings
  from dataclasses import asdict, dataclass
  from typing import Tuple
  import numpy
  import torch
  from hivemind.proto.runtime_pb2 import CompressionType
  from hivemind.utils.serializer import MSGPackSerializer
label_desc: Use image node_id 2 for calling the TensorDescriptor obj's underlying member method code with example usage: obj.numel() and returns: int