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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_packages():
 # type: () -> List[Package] """Convert `pkg_resources.working_set` into a list of `Package` objects. :return: list """

    return [Package(pkg_obj=pkg) for pkg in sorted(pkg_resources.working_set,
                                                   key=lambda x: str(x).lower())]