import { Ref } from 'vue';
import { ValidationState } from '../types/CommonTypes';
/**
 * Provides formGroupKey for descendant form controls. Each provider has its own isolated
 * label-target registry: BFormGroup uses the resulting `singleLabelTargetId` to drive its
 * label/legend rendering. Intermediate components (e.g. BFormFloatingLabel) call this with
 * passed-through state/disabled, acting as a boundary — their registry exists but is unused,
 * so descendant claims never reach an outer BFormGroup.
 */
export declare const useProvideFormGroupData: ({ state, disabled, }: {
    state: Readonly<Ref<ValidationState | undefined>>;
    disabled: Readonly<Ref<boolean>>;
}) => {
    singleLabelTargetId: import('vue').ComputedRef<string | null>;
};