import { CdkStep } from '@angular/cdk/stepper';
export declare abstract class SdsStepperNavigationEvent {
    private _from;
    private _to;
    get from(): CdkStep;
    get to(): CdkStep;
    constructor(from: CdkStep, to: CdkStep);
}
export declare class SdsStepperNavigationStart extends SdsStepperNavigationEvent {
    private _aborted;
    get aborted(): boolean;
    abort(): void;
}
export declare class SdsStepperNavigationEnd extends SdsStepperNavigationEvent {
}