code: function addToQueue( callback, prioritize, seed ) {
  	if ( prioritize ) {
  		config.queue.splice( priorityCount++, 0, callback );
  	} else if ( seed ) {
  		if ( !unitSampler ) {
  			unitSampler = unitSamplerGenerator( seed );
  		}
  
  		// Insert into a random position after all prioritized items
  		const index = Math.floor( unitSampler() * ( config.queue.length - priorityCount + 1 ) );
  		config.queue.splice( priorityCount + index, 0, callback );
  	} else {
  		config.queue.push( callback );
  	}
  }
docs: Adds a function to the ProcessingQueue for execution.
  @param {Function|Array} callback
  @param {Boolean} priority
  @param {String} seed