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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 update_libraries_list_store(self):
 """Creates the list store for the libraries """

        self.library_list_store.clear()
        libraries = self.core_config_model.get_current_config_value("LIBRARY_PATHS", use_preliminary=True, default={})
        library_names = sorted(libraries.keys())
        for library_name in library_names:
            library_path = libraries[library_name]
            self.library_list_store.append((library_name, library_path))