def _queuestore(self):
data_dir = os.path.join(os.getcwd(), '<STR_LIT:data>')<EOL>if not os.path.exists(data_dir):<EOL><INDENT>os.makedirs(data_dir)<EOL><DEDENT>configuration = {'<STR_LIT>': '<STR_LIT>'}<EOL>engine = engine_from_config(configuration, '<STR_LIT>')<EOL>init_model(engine, drop=True)<EOL>return SAQueue()<EOL>
Returns the configured L{QueueStore} instance to use.

Can be overridden by subclasses that wish to change out any queue store parameters.

@rtype: L{QueueStore}