code: def merge(tens):
      # if not isinstance(tens, (list, caer.Tensor)):
      #     raise ValueError("tens must be a list or caer.Tensor of (ideally) shape = 3)")
  
      return cv.merge(tens)
  
file_path: caer/caer/core.py
imports: import cv2
  import numpy
  import gc
  from .path import listdir, join
label_desc: Use image node_id 3 for calling a global function with example usage: merge(tens) and returns: cv