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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 __get_interests(self):
 """Method to procure description of repositories the authenticated user is interested in. We currently attribute interest to: 1. The repositories the authenticated user has starred. 2. The repositories the users the authenticated user follows have starred. :return: List of repository descriptions. """

        # All repositories of interest.
        repos_of_interest = itertools.chain(
            self.user_starred_repositories,
            self.user_following_starred_repositories,
        )

        # Extract descriptions out of repositories of interest.
        repo_descriptions = [repo.description for repo in repos_of_interest]
        return list(set(repo_descriptions))