import { LegacyFeature } from "@trackunit/iris-app-runtime-core-api";
export type HasAccess = boolean | null;
export type ValidateAccess = LegacyFeature;
/**
 * Async wrapper around {@link useValidateAccess}. Each helper awaits until the
 * underlying user, subscription, and feature-flag data has finished loading
 * before resolving, so callers such as router guards can check access without
 * having to observe the synchronous `loading` flag themselves.
 */
export declare const useValidateAccessAsync: () => {
    hasAccessTo: (requiredAccessTo: ValidateAccess) => Promise<HasAccess>;
    hasFeatureFlag: (flag: string) => Promise<HasAccess>;
    hasPermission: (permission: string) => Promise<HasAccess>;
};
/**
 * Synchronously evaluates the current user's access via subscription features,
 * feature flags, and permissions. Returns predicate helpers plus a `loading`
 * flag that stays true until user, subscription, and flag data are all present.
 */
export declare const useValidateAccess: () => {
    hasAccessTo: (requiredAccessTo: ValidateAccess) => HasAccess;
    hasFeatureFlag: (flag: string) => HasAccess;
    hasPermission: (permission: string) => HasAccess;
    loading: boolean;
};