How to use the tableaudocumentapi.Datasource.from_connections function in tableaudocumentapi

def test_can_create_datasource_from_connections(self):
        conn1 = Connection.from_attributes(
            server='a', dbname='b', username='c', dbclass='mysql', authentication='d')
        conn2 = Connection.from_attributes(
            server='1', dbname='2', username='3', dbclass='mysql', port='1337', authentication='7')
        ds = Datasource.from_connections('test', connections=[conn1, conn2])

        self.assertEqual(ds.connections[0].server, 'a')
        self.assertEqual(ds.connections[0].port, None)
        self.assertEqual(ds.connections[1].server, '1')
        self.assertEqual(ds.connections[1].port, '1337')

def test_can_create_datasource_from_connections(self):
        conn1 = Connection.from_attributes(
            server='a', dbname='b', username='c', dbclass='mysql', authentication='d')
        conn2 = Connection.from_attributes(
            server='1', dbname='2', username='3', dbclass='mysql', port='1337', authentication='7')
        ds = Datasource.from_connections('test', connections=[conn1, conn2])

        self.assertEqual(ds.connections[0].server, 'a')
        self.assertEqual(ds.connections[0].port, None)
        self.assertEqual(ds.connections[1].server, '1')
        self.assertEqual(ds.connections[1].port, '1337')