Interface Animation<T>

interface Animation<T = unknown> {
    "[dispose]": () => void;
    canInterpolate: () => boolean;
    createAtTime: (value: T, time: Rational, index?: number) => void;
    createView: (
        getTime: () => Rational,
    ) => {
        "[dispose]": () => void;
        dispose: () => void;
        getValue: () => T | undefined;
    };
    delete: (index: number) => void;
    dispose: () => void;
    flags: number;
    getKeyframeAt: (time: Schema.Rational) => Keyframe<T> | undefined;
    getKeyframeFor: (time: Schema.Rational) => Keyframe<T> | undefined;
    indexOfKeyframeAt: (time: Schema.Rational) => number;
    insert: (index: number, keyframe: Keyframe<T>) => void;
    keyframes: Keyframe<T>[];
    pushInitial: (keyframe: Keyframe<T>) => void;
    splitAt: (
        time: Rational,
    ) =>
        | {
            isOnKeyframe: boolean;
            sliceTo: Keyframe<T>
            | undefined;
            sliceToIndex: number;
            splitValue: T;
        }
        | undefined;
    toJSON: () => Schema.Animation<T> | undefined;
    update: <K extends keyof Keyframe<T>>(
        index: number,
        key: K,
        value: Keyframe<T>[K],
    ) => void;
    updateOrCreateAtTime: (value: T, time: Rational, index?: number) => void;
}