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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 artifact_bundles(self):
 """ Gets the Artifact Bundles API client. Returns: ArtifactBundles: """

        if not self.__artifact_bundles:
            self.__artifact_bundles = ArtifactBundles(self.__connection)
        return self.__artifact_bundles