import { ElementRef, EventEmitter } from '@angular/core';
import { CanColor } from '@angular/material';
import { FormStep } from './form-step.model';
declare class FormStepBase {
    _elementRef: ElementRef;
    constructor(_elementRef: ElementRef);
}
declare const _FormStepMixinBase: import("@angular/material/core/typings/common-behaviors/constructor").Constructor<CanColor> & typeof FormStepBase;
export declare class FormStepGroupComponent extends _FormStepMixinBase implements CanColor {
    /** Used to show or hide all but the first step.*/
    collapsed: boolean;
    /** Color for theming, can be primary, accent, or warn */
    color: 'primary' | 'accent' | 'warn';
    incompleteIcon: string;
    /** Steps to be displayed */
    steps: FormStep[];
    private _steps;
    selected: EventEmitter<FormStep>;
    constructor(elementRef: ElementRef);
}
export {};