Incompatible priority values for different drivers

Some of drivers support priority queues. But priority values ​​for different drivers are not compatible.
I used DB driver and had this code for high priority tasks:

Yii::$app->queue->priority(0)->push($someJob);

By default DB driver sets priority to 1024 and lesser value means higher priority.

Now I move to AMQP Interop driver (RabbitMQ). And I have to rewrite my code for high priority jobs:

Yii::$app->queue->priority(10)->push($someJob);

AMQP Interop maximum priority is 10 by default and higher value means higher priority.

As I see Gearman also supports priorities

I understand that priority value depends on driver. But I'd like to have scalable system and I'd like to have ability to change driver without code rewriting. I propose to add three common priorities to driver classes.

namespace yii\queue\db;

class Queue extends CliQueue
{
    public $priorityLow = 2048;
    public $priorityMedium = 1024;
    public $priorityHigh = 0;
    //...
}

namespace yii\queue\amqp_interop;

class Queue extends CliQueue
{
    public $priorityLow = 1;
    public $priorityMedium = 5;
    public $priorityHigh = 10;
    //...
}

namespace yii\queue\gearman;

class Queue extends CliQueue
{
    public $priorityLow = 'low';
    public $priorityMedium = null;
    public $priorityHigh = 'high';
    //...
}

And use code like

Yii::$app->queue->priority(Yii::$app->queue->priorityHigh)->push($someJob);

Or something like this.

Inspect the DB, AMQP Interop, and Gearman Queue classes and the existing priority API first. Define how shared low, medium, and high priorities should map to each driver, then verify that callers can change drivers without rewriting priority values and that the supported drivers are covered by tests.