declare namespace Ext {
    export namespace draw {
        export namespace modifier {
            export interface AnimationConfig {
                customDurations?: object;
                customEasings?: object;
                duration?: number;
                easing?: CallableFunction;
                listeners?: object;
                sprite?: Ext.draw.sprite.Sprite;
            }

            export class Animation extends Ext.draw.modifier.Modifier  {
                public clearDurationOn(attrs?: object): void;
                public clearEasingOn(attrs?: string | []): void;
                public getCustomDurations(): void;
                public getCustomEasings(): void;
                public getDuration(): void;
                public getEasing(): void;
                public setCustomDurations(): void;
                public setCustomEasings(): void;
                public setDuration(): void;
                public setDurationOn(attrs?: string | [], duration?: number): void;
                public setEasing(): void;
                public setEasingOn(attrs?: string | [], easing?: string): void;
                public stop(): void;
            }
        }
    }
}