          self.vid_reader = self.check_input_folder()
          self.file_list_sorted = self.sorted_items()
          self.items = self.load_items()
          logger.verbose("%s items loaded", self.count)
          logger.debug("Initialized %s", self.__class__.__name__)
  
      @property
      def is_video(self):
 
</s> remove     @property
    def images_found(self):
 </s> add     def count_images(self): </s> remove     @property
    def count(self):
 </s> add     def count_frames(self):
        self.count = self.count_frames()
          self.vid_reader = self.check_input_folder()
          self.file_list_sorted = self.sorted_items()
          self.items = self.load_items()
        self.count = self.count_frames()
          logger.verbose("%s items loaded", self.count)
          logger.debug("Initialized %s", self.__class__.__name__)
  
      @property
      def is_video(self):
keep keep add keep keep keep keep keep
 Ensure frames are only counted once (#834) 
tools/lib_alignments/media.py