interface Config {
    grants?: Grant[];
}
interface Grant {
    name: string;
    capabilities: string[];
}
export declare class StorageConfig {
    private data;
    constructor(data: Config);
    get config_path(): string;
    ensure_root(): void;
    static load(): StorageConfig;
    load(): void;
    save(): void;
    grants(app: string): Grant | undefined;
    update_grants(app: string, grants: string[]): void;
}
export {};