import { LitElement } from 'lit';
export declare class Stepper extends LitElement {
    activeStep: number;
    orientation: 'horizontal' | 'vertical';
    alternativeLabel: boolean;
    nonLinear: boolean;
    private steps;
    static styles: import("lit").CSSResult;
    connectedCallback(): void;
    disconnectedCallback(): void;
    firstUpdated(): void;
    updated(changedProperties: Map<string, any>): void;
    private handleStepClick;
    private updateSteps;
    private handleSlotChange;
    render(): import("lit-html").TemplateResult<1>;
}
export declare class Step extends LitElement {
    index: number;
    active: boolean;
    completed: boolean;
    disabled: boolean;
    optional: boolean;
    error: boolean;
    orientation: 'horizontal' | 'vertical';
    alternativeLabel: boolean;
    nonLinear: boolean;
    isLast: boolean;
    static styles: import("lit").CSSResult;
    private handleClick;
    render(): import("lit-html").TemplateResult<1>;
}
export declare class StepLabel extends LitElement {
    optional: boolean;
    error: boolean;
    optionalText: string;
    static styles: import("lit").CSSResult;
    render(): import("lit-html").TemplateResult<1>;
}
export declare class StepContent extends LitElement {
    step: number;
    activeStep: number;
    transitionDuration: boolean;
    static styles: import("lit").CSSResult;
    updated(changedProperties: Map<string, any>): void;
    render(): import("lit-html").TemplateResult<1>;
}
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