export declare const elkOptionMap: {
    rankdir: {
        LR: string;
        TB: string;
        BT: string;
        RL: string;
        default: string;
    };
    align: {
        UL: string;
        UR: string;
        DL: string;
        DR: string;
        default: string;
    };
    ranker: {
        'network-simplex': string;
        'tight-tree': string;
        'longest-path': string;
        default: string;
    };
    acyclicer: {
        greedy: string;
        default: string;
    };
};