export declare class Keyframe {
    kfId: string;
    timeOffset: number;
    values: number[];
    constructor(timeOffset: number, value: number);
    export_json(): {
        [key: string]: any;
    };
}
export declare enum KeyframeProperty {
    positionX = "KFTypePositionX",
    positionY = "KFTypePositionY",
    rotation = "KFTypeRotation",
    scaleX = "KFTypeScaleX",
    scaleY = "KFTypeScaleY",
    uniformScale = "UNIFORM_SCALE",
    alpha = "KFTypeAlpha",
    saturation = "KFTypeSaturation",
    contrast = "KFTypeContrast",
    brightness = "KFTypeBrightness",
    volume = "KFTypeVolume"
}
export declare class KeyframeList {
    listId: string;
    keyframeProperty: KeyframeProperty;
    keyframes: Keyframe[];
    constructor(keyframeProperty: KeyframeProperty);
    addKeyframe(timeOffset: number, value: number): void;
    export_json(): {
        [key: string]: any;
    };
}