docstr: Return the batch size of the storage.
  
  Returns:
     scalar with the batch size
docstr_tok: ["Return","the","batch","size","of","the","storage",".","Returns",":","scalar","with","the","batch","size"]
code: def batch_size(self) -> int:
      r"""Return the batch size of the storage.
  
      Returns:
         scalar with the batch size
      """
      return self.rectified_left_camera.shape[0]
  
imports: from typing import Any
  import torch
  from kornia.core import Tensor, stack, zeros
  from kornia.geometry.linalg import transform_points
  from kornia.utils.grid import create_meshgrid
label_desc: Use image node_id 3 for calling the StereoCamera obj's underlying member method code with example usage: obj.batch_size() and returns: self