code: def _is_bgr_image(tens):
      # tens = to_tensor(tens)
      # return tens.is_bgr()
      return len(tens.shape) == 3 and tens.shape[-1] == 3
  
file_path: caer/caer/color/_bgr.py
imports: import cv2
  from ..coreten import Tensor, to_tensor
  from ._constants import BGR2RGB, BGR2GRAY, BGR2HSV, BGR2LAB, BGR2HLS, BGR2YUV, BGR2LUV
label_desc: Use image node_id 1 for calling a global function with example usage: _is_bgr_image(tens) and returns: unknown