interface Drop {
    x: number;
    y: number;
    speed: number;
    length: number;
    chars: string[];
    tick: number;
    brightness: number;
}
export declare function generateMatrixRainFrame(width: number, height: number, drops: Drop[]): {
    frame: string;
    drops: Drop[];
};
export declare function renderMatrixRain(runId: string, width?: number, height?: number): string;
export {};
