/** The aspect ratio of the output video. With `auto`, the model picks an aspect ratio based on the inputs. First-frame / first-and-last-frame tasks always use `auto`. */
export declare const BytedanceSeedance25RequestAspectRatio: {
    readonly Auto: "auto";
    readonly TwentyOne9: "21:9";
    readonly Sixteen9: "16:9";
    readonly Four3: "4:3";
    readonly One1: "1:1";
    readonly Three4: "3:4";
    readonly Nine16: "9:16";
};
export type BytedanceSeedance25RequestAspectRatio = (typeof BytedanceSeedance25RequestAspectRatio)[keyof typeof BytedanceSeedance25RequestAspectRatio];