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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 install():
 """ Install the import hook to load extensions from the app Lib folder. Like imports but leaves it in the meta_path, thus it is slower. """

    from .core.import_hooks import ExtensionImporter
    importer = ExtensionImporter()
    sys.meta_path.append(importer)