EnvMQTTUsername          = "MINIO_NOTIFY_MQTT_USERNAME"
	EnvMQTTPassword          = "MINIO_NOTIFY_MQTT_PASSWORD"
	EnvMQTTReconnectInterval = "MINIO_NOTIFY_MQTT_RECONNECT_INTERVAL"
	EnvMQTTKeepAliveInterval = "MINIO_NOTIFY_MQTT_KEEP_ALIVE_INTERVAL"
	EnvMQTTQueueDir          = "MINIO_NOTIFY_MQTT_QUEUE_DIR"
	EnvMQTTQueueLimit        = "MINIO_NOTIFY_MQTT_QUEUE_LIMIT"
)

// MQTTArgs - MQTT target arguments.
type MQTTArgs struct {