import type { GeoJSONFeature } from '../types';
export interface PrefectureDataIndex {
    prefectures: {
        [code: string]: {
            name: string;
            municipalityCount: number;
            files: {
                [precision: string]: {
                    path: string;
                    size: number;
                    features: number;
                };
            };
        };
    };
    generated: string;
    totalSize: {
        original: number;
        compressed: number;
    };
}
export declare class DynamicDataLoader {
    private baseUrl;
    private cache;
    private index?;
    private currentPrecision;
    constructor(baseUrl?: string);
    loadIndex(): Promise<void>;
    setPrecision(precision: string): void;
    isPrefectureAvailable(prefectureCode: string): Promise<boolean>;
    loadMunicipalitiesForPrefecture(prefectureCode: string): Promise<GeoJSONFeature[]>;
    loadMunicipalitiesForPrefectures(prefectureCodes: string[]): Promise<GeoJSONFeature[]>;
    clearCache(prefectureCode?: string): void;
    getCacheInfo(): {
        count: number;
        prefectures: string[];
    };
    getDataSizeInfo(prefectureCode: string): Promise<{
        name: string;
        sizes: {
            [precision: string]: number;
        };
    } | null>;
}