import { AfterViewInit, ChangeDetectorRef, OnInit, QueryList } from '@angular/core';
import { Styles, Theme } from '../../types/index';
import { Ground, GroundProps } from '../ground/index';
import { Step } from '../step/index';
declare type ActiveStepProp = number | string;
declare type AlternativeLabelProp = boolean | string;
declare type NonLinearProp = boolean | string;
declare type OrientationProp = 'horizontal' | 'vertical';
export interface StepperProps extends GroundProps {
    activeStep?: ActiveStepProp;
    alternativeLabel?: AlternativeLabelProp;
    nonLinear?: NonLinearProp;
    orientation?: OrientationProp;
}
export declare const StepperClassKey: string;
export declare type StepperClasses = 'root' | 'alternativeLabel' | 'horizontal' | 'vertical';
export declare function StepperStyles(theme: Theme): Styles;
export declare class Stepper extends Ground implements AfterViewInit, OnInit {
    changeDetector: ChangeDetectorRef;
    activeStep: ActiveStepProp;
    alternativeLabel: AlternativeLabelProp;
    nonLinear: NonLinearProp;
    orientation: OrientationProp;
    steps: QueryList<Step>;
    constructor(changeDetector: ChangeDetectorRef);
    ngOnInit(): void;
    ngAfterViewInit(): void;
    composeClasses(): void;
}
export {};