export declare function classPrefix(name: string): (str: string) => string;
export declare function drag(name: string): any;
export declare function eventClient(type: string, e: any): any;
export declare function eventPage(type: string, e: any): any;
export declare function measuredScrollbarWidth(): number;
export declare function hasVerticalScrollbar(el: HTMLElement): boolean;
export declare function executeAfterTransition(el: HTMLElement, callback: () => any): any;
export declare function pxToNum(str: string): number;
export declare function getPlatform(): string;
export declare function resetCanvasSize(canvas: HTMLCanvasElement): void;