import type { LoaderTree } from '../../lib/app-dir-module';
import type { AppSegmentConfig } from '../../../build/segment-config/app/app-segment-config';
export declare function anySegmentHasRuntimePrefetchEnabled(tree: LoaderTree): Promise<boolean>;
export declare function isPageAllowedToBlock(tree: LoaderTree): Promise<boolean>;
type FoundSegmentWithConfig = {
    path: string[];
    config: NonNullable<AppSegmentConfig['unstable_instant']>;
};
/**
 * Checks if any segments in the loader tree have `instant` configs that need validating.
 * NOTE: Client navigations call this multiple times, so we cache it.
 * */
export declare const anySegmentNeedsInstantValidation: (arg: LoaderTree) => Promise<boolean>;
export declare const findSegmentsWithInstantConfig: (arg: LoaderTree) => Promise<FoundSegmentWithConfig[]>;
export {};