old_contents: # Debugging module
  
  from plantcv.plantcv import params
  from plantcv.plantcv import print_image
  from plantcv.plantcv import plot_image
  
  
  def _debug(visual, filename=None):
      """Save or display a visual for debugging.
  
      Inputs:
      visual   - An image or plot to display for debugging
      filename - An optional filename to save the visual to (default: None)
  
      :param visual: numpy.ndarray
      :param filename: str
      """
      if params.debug == "print":
          # If debug is print, save the image to a file
          print_image(img=visual, filename=filename)
      elif params.debug == "plot":
          # If debug is plot, print to the plotting device
          plot_image(img=visual)
  
new_contents: # Debugging module
  
  from plantcv.plantcv import params
  from plantcv.plantcv import print_image
  from plantcv.plantcv import plot_image
  
  
  def _debug(visual, filename=None):
      """Save or display a visual for debugging.
  
      Inputs:
      visual   - An image or plot to display for debugging
      filename - An optional filename to save the visual to (default: None)
  
      :param visual: numpy.ndarray
      :param filename: str
      """
      # Auto-increment the device counter
      params.device += 1
      
      if params.debug == "print":
          # If debug is print, save the image to a file
          print_image(img=visual, filename=filename)
      elif params.debug == "plot":
          # If debug is plot, print to the plotting device
          plot_image(img=visual)
  
subject: Update _debug.py