docstr: Raise ValueError if we have invalid shapes.
docstr_tok: ["Raise","ValueError","if","we","have","invalid","shapes","."]
code: def validate_shape(self):
      """Raise ValueError if we have invalid shapes."""
      if len(self.shape) != 5 or self.shape[2] != 3:
          raise ValueError(
              f"Invalid shape! Expected [B, T, 3, H, W], got {self.shape}"
          )
  
imports: from typing import List, NamedTuple, Optional, Union
  import torch
  from torch import Tensor
label_desc: Use image node_id 6 for calling the VideoDataset obj's underlying member method code with example usage: obj.validate_shape() without return types