import { AcApContext } from '../../app';
import { AcEdCommand } from '../../editor';
import { AcTrView2d } from '../../view';
/**
 * Registers a cleanup function to be called when the Clear Measurements command
 * runs. Used for CAD transient entities, canvas overlays, and viewChanged
 * listeners that are not managed by the htmlTransientManager.
 */
export declare function registerMeasurementCleanup(fn: () => void): void;
/**
 * Runs every measurement-cleanup callback registered via
 * `registerMeasurementCleanup` and clears the measurement HTML overlay
 * layer on the given view. Shared between the user-facing
 * `AcApClearMeasurementsCmd` command and internal lifecycle hooks
 * (e.g. clearing measurements when the user switches paper-space
 * layouts, where any pending measurement would otherwise leak across
 * layouts in coordinates that no longer make sense).
 */
export declare function clearAllMeasurements(view: AcTrView2d): void;
export declare class AcApClearMeasurementsCmd extends AcEdCommand {
    constructor();
    execute(context: AcApContext): Promise<void>;
}
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