docs: def get_preprocessing_queue(preprocessing_list):
      """Get preprocessing queue from a list of dictionaries
  
      >>> l = [{'RemoveDuplicateTime': None},
               {'ScaleAndShift': [{'center': True}]}
              ]
      >>> get_preprocessing_queue(l)
      [RemoveDuplicateTime, ScaleAndShift
       - center: True
       - max_width: 1
       - max_height: 1
      ]
      """
      return utils.get_objectlist(preprocessing_list,
                                  config_key='preprocessing',
                                  module=sys.modules[__name__])