def close(self):
		'''关闭与数据库的连接'''
		if VERBOSE:
			print 'Database connection CLOSE.'
		self.conn.close()
def testWrapperV2Build(self, wrapper):
    cell = rnn_cell_impl.LSTMCell(10)
    wrapper = wrapper(cell)
    wrapper.build((1,))
    self.assertTrue(cell.built)