import { Ref } from 'vue';
export declare const RequiredMarkerTypes: readonly ["optional", "required"];
export type RequiredMarkerType = (typeof RequiredMarkerTypes)[number];
export type RequiredProp = {
    /**
     * Whether the a value for this form element is required.
     */
    required?: boolean;
};
export declare const useRequired: (props: RequiredProp, requiredMarker: Readonly<Ref<RequiredMarkerType>>) => {
    /**
     * Class that configures which type of required marker is used.
     */
    requiredTypeClass: import('vue').ComputedRef<{
        [x: string]: boolean;
    }>;
    requiredMarkerClass: import('vue').ComputedRef<{
        "onyx-required-marker": boolean | undefined;
        "onyx-optional-marker": boolean;
    }>;
};