import { Tool } from "@itwin/core-frontend";
/** Unloads all tile trees, then starts a timer that stops when all tile trees and tiles required for the view are ready.
 * Outputs the elapsed time to notifications manager.
 * @beta
 */
export declare class MeasureTileLoadTimeTool extends Tool {
    static toolId: string;
    /** This method runs the tool, unloading all tile trees, then starts a timer that stops when all tile trees and tiles required for the view are ready. It will then output the elapsed time to notifications manager.
     * @param _args this parameter is unused
     */
    run(_args: any[]): Promise<boolean>;
}
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