How to use the amqpstorm.UriConnection function in AMQPStorm

def test_uri_set_virtual_host(self):
        connection = \
            UriConnection('amqp://guest:guest@localhost:5672/travis', True)
        self.assertIsInstance(connection.parameters['virtual_host'], str)
        self.assertEqual(connection.parameters['virtual_host'], 'travis')

def test_uri_set_timeout(self):
        connection = \
            UriConnection('amqp://guest:guest@localhost:5672/%2F?'
                          'timeout=1337', True)
        self.assertIsInstance(connection.parameters['timeout'], int)
        self.assertEqual(connection.parameters['timeout'], 1337)

def test_uri_set_ssl(self):
        connection = UriConnection('amqps://guest:guest@localhost:5671/%2F?'
                                   'ssl_version=protocol_tlsv1&'
                                   'cert_reqs=cert_required&'
                                   'keyfile=file.key&'
                                   'certfile=file.crt&'
                                   'ca_certs=test', True)
        self.assertTrue(connection.parameters['ssl'])
        self.assertEqual(connection.parameters['ssl_options']['ssl_version'],
                         ssl.PROTOCOL_TLSv1)
        self.assertEqual(connection.parameters['ssl_options']['cert_reqs'],
                         ssl.CERT_REQUIRED)
        self.assertEqual(connection.parameters['ssl_options']['keyfile'],
                         'file.key')
        self.assertEqual(connection.parameters['ssl_options']['certfile'],
                         'file.crt')
        self.assertEqual(connection.parameters['ssl_options']['ca_certs'],
                         'test')

def test_uri_set_hostname(self):
        connection = \
            UriConnection('amqp://guest:guest@my-server:5672/%2F?'
                          'heartbeat=1337', True)
        self.assertIsInstance(connection.parameters['hostname'], str)
        self.assertEqual(connection.parameters['hostname'], 'my-server')

def test_uri_get_invalid_ssl_validation(self):
        connection = \
            UriConnection('amqp://guest:guest@localhost:5672/%2F', True)
        self.assertEqual(ssl.CERT_NONE,
                         connection._get_ssl_validation('cert_test'))

def test_uri_set_heartbeat(self):
        connection = \
            UriConnection('amqp://guest:guest@localhost:5672/%2F?'
                          'heartbeat=1337', True)
        self.assertIsInstance(connection.parameters['heartbeat'], int)
        self.assertEqual(connection.parameters['heartbeat'], 1337)

def test_uri_default(self):
        connection = \
            UriConnection('amqp://guest:guest@localhost:5672/%2F', True)
        self.assertEqual(connection.parameters['hostname'], 'localhost')
        self.assertEqual(connection.parameters['username'], 'guest')
        self.assertEqual(connection.parameters['password'], 'guest')
        self.assertEqual(connection.parameters['virtual_host'], '/')
        self.assertEqual(connection.parameters['port'], 5672)
        self.assertEqual(connection.parameters['heartbeat'], 60)
        self.assertEqual(connection.parameters['timeout'], 30)
        self.assertFalse(connection.parameters['ssl'])

def test_uri_set_port(self):
        connection = \
            UriConnection('amqp://guest:guest@localhost:1337/%2F', True)
        self.assertIsInstance(connection.parameters['port'], int)
        self.assertEqual(connection.parameters['port'], 1337)

try:
                if self._router._connection_type=="app":
                    request_res = requests.post(
                        "https://api.kervi.io/sessions",
                        headers= {
                            "api-user": self._user,
                            "api-password": self._password,
                            "app_id": self._app_id,
                            "app_name": self._app_name,
                            
                        }
                    )
                    print("cres", request_res.json())
                connection_string = 'amqps://'+self._user+':'+self._password+'@'+self._address+':' + str(self._port)+'/'+self._vhost
                #print("cns", connection_string)
                self._connection = UriConnection(
                    connection_string
                )
                #self._connection = Connection(self._address, self._user, self._password, port=self._port, vhost=self._vhost)
                break
            except amqpstorm.AMQPError as why:
                LOGGER.exception(why)
                print("why connect", why.error_code)
                if why.error_code == 403 or why.error_code == 530:
                    print("Kervi.io authentication error, check configuration for the plugin kervi.plugin.routing.kervi_io")
                    break

                if self._max_retries and attempts > self._max_retries:
                    break
                time.sleep(min(attempts * 2, 30))
            except KeyboardInterrupt:
                break

def publisher():
    with UriConnection(URI) as connection:
        with connection.channel() as channel:
            channel.queue.declare('simple_queue')
            channel.basic.publish(body='Hello World!',
                                  routing_key='simple_queue')