import Command from './BaseCommand.mjs';
/**
 * Represents a queue of commands with timestamp-based sorting.
 */
declare class CommandQueue {
    private queue;
    /**
     * @returns The number of commands in the queue.
     */
    get size(): number;
    /**
     * Adds a command to the queue and sorts it based on timestamp.
     * @param command - The command to be added to the queue.
     */
    enqueue(command: Command): void;
    /**
     * Removes and returns the first command from the queue.
     * @returns The first command in the queue, or undefined if the queue is empty.
     * @throws {FavaLibError} If the queue is empty.
     */
    dequeue(): Command | undefined;
    /**
     * Checks if the queue is empty.
     * @returns True if the queue is empty, false otherwise.
     */
    isEmpty(): boolean;
}
export default CommandQueue;