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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 filename(self):
 """ Returns readable filename for a transcript """

        client_id, __ = os.path.splitext(self.video.client_video_id)
        file_name = u'{name}-{language}.{format}'.format(
            name=client_id,
            language=self.language_code,
            format=self.file_format
        ).replace('\n', ' ')
        
        return file_name