def delete_video_transcript(video_id, language_code):
    """
    Delete transcript for an existing video.

    Arguments:
        video_id: id identifying the video to which the transcript is associated.
        language_code: language code of a video transcript.
    """
    video_transcript = VideoTranscript.get_or_none(video_id, language_code)
    if video_transcript:
        # delete the transcript content from storage.
        video_transcript.transcript.delete()
        # delete the transcript metadata from db.
        video_transcript.delete()
        logger.info('Transcript is removed for video "%s" and language code "%s"', video_id, language_code)
Delete transcript for an existing video.

    Arguments:
        video_id: id identifying the video to which the transcript is associated.
        language_code: language code of a video transcript.