import type { Ref } from "vue";
import type { ScreenMap } from "./responsive-observe";
import type { Breakpoint } from "./break-point";
export * from "./break-point";
/**
 * 获取当前的响应式断点. 该值会随着窗口大小的变化而变化.
 *
 * 使用基于 [BootStrap 4](https://getbootstrap.com/docs/4.0/layout/overview/#responsive-breakpoints) 定制的断点规则.
 * 详见 {@link ./responsive-observe.ts}
 */
export declare function useResponsive(): {
    breakPoint: Ref<"xs" | "sm" | "md" | "lg" | "xl" | "xxl" | "xxxl">;
};
export declare function getMaximumBreakPoint(screen: ScreenMap): Breakpoint;