export interface UseStepperReturn<StepName, Steps, Step> {
  /** List of steps. */
  steps: Readonly<Ref<Steps>>
  /** List of step names. */
  stepNames: Readonly<Ref<StepName[]>>
  /** Index of the current step. */
  index: Ref<number>
  /** Current step. */
  current: ComputedRef<Step>
  /** Next step, or undefined if the current step is the last one. */
  next: ComputedRef<StepName | undefined>
  /** Previous step, or undefined if the current step is the first one. */
  previous: ComputedRef<StepName | undefined>
  /** Whether the current step is the first one. */
  isFirst: ComputedRef<boolean>
  /** Whether the current step is the last one. */
  isLast: ComputedRef<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
}
export declare function useStepper<T extends string | number>(
  steps: MaybeRef<T[]>,
  initialStep?: T
): UseStepperReturn<T, T[], T>
export declare function useStepper<T extends Record<string, any>>(
  steps: MaybeRef<T>,
  initialStep?: keyof T
): UseStepperReturn<Exclude<keyof T, symbol>, T, T[keyof T]>