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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_image_info_cb(self, gshell, channel, iminfo):
 """Add entries related to an added image."""


        timestamp = iminfo.time_modified
        if timestamp is None:
            # Not an image we are interested in tracking
            return

        self.add_entry(channel.name, iminfo)