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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 list_basebackups(self, arg):
 """List basebackups from an object store"""

        self.config = config.read_json_config_file(arg.config, check_commands=False, check_pgdata=False)
        site = config.get_site_from_config(self.config, arg.site)
        self.storage = self._get_object_storage(site, pgdata=None)
        self.storage.show_basebackup_list(verbose=arg.verbose)