declare const BackTop: import("vue").DefineComponent<{ prefixCls: StringConstructor; duration: NumberConstructor; target: { type: import("vue").PropType<() => Window | Document | HTMLElement>; default: () => Window | Document | HTMLElement; }; visibilityHeight: NumberConstructor; onClick: { type: import("vue").PropType; default: import("../_util/EventInterface").MouseEventHandler; }; description: import("vue-types").VueTypeValidableDef; type: { type: import("vue").PropType; default: import("./interface").FloatButtonType; }; shape: { type: import("vue").PropType; default: import("./interface").FloatButtonShape; }; tooltip: import("vue-types").VueTypeValidableDef; href: StringConstructor; badge: { type: import("vue").PropType; default: import("./interface").FloatButtonBadgeProps; }; }, () => import("../_util/type").VueNode, unknown, {}, {}, import("vue").ComponentOptionsMixin, import("vue").ComponentOptionsMixin, {}, string, import("vue").PublicProps, Readonly Window | Document | HTMLElement>; default: () => Window | Document | HTMLElement; }; visibilityHeight: NumberConstructor; onClick: { type: import("vue").PropType; default: import("../_util/EventInterface").MouseEventHandler; }; description: import("vue-types").VueTypeValidableDef; type: { type: import("vue").PropType; default: import("./interface").FloatButtonType; }; shape: { type: import("vue").PropType; default: import("./interface").FloatButtonShape; }; tooltip: import("vue-types").VueTypeValidableDef; href: StringConstructor; badge: { type: import("vue").PropType; default: import("./interface").FloatButtonBadgeProps; }; }>>, { type: import("./interface").FloatButtonType; onClick: import("../_util/EventInterface").MouseEventHandler; target: () => Window | Document | HTMLElement; shape: import("./interface").FloatButtonShape; badge: import("./interface").FloatButtonBadgeProps; }, {}>; export default BackTop;