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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 unzip_manifest(self, raw_manifest):
 """ Decompress gzip encoded manifest :type raw_manifest: str :param raw_manifest: compressed gzip manifest file content """

        buf = BytesIO(raw_manifest)
        f = gzip.GzipFile(fileobj=buf)
        manifest = f.read()

        return manifest