text: import logging
  import anyio
  from functools import partial
  
  from distmqtt.client import open_mqttclient
  from distmqtt.mqtt.constants import QOS_1, QOS_2
  
  
  #
  # This sample shows how to publish messages to broker using different QOS
  # Debug outputs shows the message flows
  #
  
  logger = logging.getLogger(__name__)
  
  config = {
      "will": {
          "topic": "/will/client",
          "message": b"Dead or alive",
          "qos": 0x01,
          "retain": True,
      }
  }
  
  
  async def test_coro():
      async with open_mqttclient(config=config) as C:
          await C.connect("mqtt://test.mosquitto.org/")
          async with anyio.create_task_group() as tg:
              await tg.spawn(C.publish, "a/b", b"TEST MESSAGE WITH QOS_0")
              await tg.spawn(
                  partial(C.publish, "a/b", b"TEST MESSAGE WITH QOS_1", qos=QOS_1)
              )
              await tg.spawn(
                  partial(C.publish, "a/b", b"TEST MESSAGE WITH QOS_2", qos=QOS_2)
              )
          logger.info("messages published")
  
  
  async def test_coro2():
      async with open_mqttclient(config=config) as C:
          await C.connect("mqtt://test.mosquitto.org:1883/")
          await C.publish("a/b", b"TEST MESSAGE WITH QOS_0", qos=0x00)
          await C.publish("a/b", b"TEST MESSAGE WITH QOS_1", qos=0x01)
          await C.publish("a/b", b"TEST MESSAGE WITH QOS_2", qos=0x02)
          logger.info("messages published")
  
  
  if __name__ == "__main__":
      formatter = (
          "[%(asctime)s] %(name)s {%(filename)s:%(lineno)d} %(levelname)s - %(message)s"
      )
      formatter = "%(message)s"
      logging.basicConfig(level=logging.DEBUG, format=formatter)
      anyio.run(test_coro)
      anyio.run(test_coro2)
  