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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 getDownloader(self, url):
 """Get an image downloader."""

        filename = self.namer(url, self.stripUrl)
        if filename is None:
            filename = url.rsplit('/', 1)[1]
        dirname = getDirname(self.name)
        return ComicImage(self.name, url, self.stripUrl, dirname, filename, self.session, text=self.text)