import { QueryList } from '@angular/core';
import { NbStepComponent } from './step.component';
export declare enum NbStepperOrientation {
    VERTICAL = "vertical",
    HORIZONTAL = "horizontal"
}
export declare class NbStepperComponent {
    steps: QueryList<NbStepComponent>;
    readonly vertical: boolean;
    readonly horizontal: boolean;
    selectedIndex: number;
    selected: NbStepComponent | undefined;
    orientation: string;
    private index;
    next(): void;
    previous(): void;
    reset(): void;
    isStepSelected(step: NbStepComponent): boolean;
    private isStepValid;
}