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- <?php
- declare(strict_types=1);
- namespace GuzzleHttp\Promise;
- interface TaskQueueInterface
- {
- /**
- * Returns true if the queue is empty.
- */
- public function isEmpty(): bool;
- /**
- * Adds a task to the queue that will be executed the next time run is
- * called.
- */
- public function add(callable $task): void;
- /**
- * Execute all of the pending task in the queue.
- */
- public function run(): void;
- }
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