export interface UseStepperReturns<StepName, Steps, Step> {
    /**
     * List of steps.
     */
    steps: Readonly<Steps>;
    /**
     * Index of the current step.
     */
    index: number;
    /**
     * Current step.
     */
    current: Step;
    /**
     * Next step, or undefined if the current step is the last one.
     */
    next: StepName | undefined;
    /**
     * Previous step, or undefined if the current step is the first one.
     */
    previous: StepName | undefined;
    /**
     * Whether the current step is the first one.
     */
    isFirst: boolean;
    /**
     * Whether the current step is the last one.
     */
    isLast: boolean;
    /**
     * Get the step at the specified index.
     */
    at: (index: number) => Step | undefined;
    /**
     * Get a step by the specified name.
     */
    get: (step: StepName) => Step | undefined;
    /**
     * Go to the specified step.
     */
    goTo: (step: StepName) => void;
    /**
     * Go to the next step. Does nothing if the current step is the last one.
     */
    goToNext(): void;
    /**
     * Go to the previous step. Does nothing if the current step is the previous one.
     */
    goToPrevious(): void;
    /**
     * Go back to the given step, only if the current step is after.
     */
    goBackTo: (step: StepName) => void;
    /**
     * Checks whether the given step is the next step.
     */
    isNext: (step: StepName) => boolean;
    /**
     * Checks whether the given step is the previous step.
     */
    isPrevious: (step: StepName) => boolean;
    /**
     * Checks whether the given step is the current step.
     */
    isCurrent: (step: StepName) => boolean;
    /**
     * Checks if the current step is before the given step.
     */
    isBefore: (step: StepName) => boolean;
    /**
     * Checks if the current step is after the given step.
     */
    isAfter: (step: StepName) => boolean;
}
/**
 * A React Hook that helps to create a stepper state.
 */
export declare function useStepper<T>(steps: T[], initialIdx?: number): UseStepperReturns<T, T[], T>;