code: def test_hls2hsv():
      cv_hls = cv.cvtColor(cv_bgr, cv.COLOR_BGR2HLS)
      cv_hls = caer.to_tensor(cv_hls, cspace="hls")
  
      hsv = caer.hls2hsv(cv_hls)
  
      assert len(hsv.shape) == 3
      assert isinstance(hsv, caer.Tensor)
      assert hsv.is_hsv()
  
file_path: caer/tests/color/test_hls.py
imports: import caer
  import cv2
  import os
label_desc: Use image node_id 4 for calling a global function with example usage: test_hls2hsv() without return types