export declare type BreakpointDefaults = Record<"xxs" | "xs" | "sm" | "md" | "lg" | "xlg", true>;
export declare type Breakpoint = keyof BreakpointDefaults;
export interface Breakpoints {
    keys: Breakpoint[];
    values: Record<Breakpoint, number>;
    up: (key: Breakpoint | number) => string;
    down: (key: Breakpoint | number) => string;
    between: (startKey: Breakpoint | number, endKey: Breakpoint | number) => string;
    width: (key: Breakpoint) => number;
}
export interface BreakpointsInput {
    values: Breakpoints["values"];
}
export declare const keys: Breakpoints["keys"];
declare const createBreakpoints: (breakpointsInput?: BreakpointsInput | undefined) => Breakpoints;
export default createBreakpoints;