import { Breakpoints, Breakpoint } from '@mui/system/createTheme/createBreakpoints';
export declare const filterBreakpointKeys: (breakpointsKeys: Breakpoint[], responsiveKeys: string[]) => Breakpoint[];
interface Iterator<T> {
    (appendStyle: (responsiveStyles: Record<string, any>, style: object) => void, value: T): void;
}
export declare const traverseBreakpoints: <T = unknown>(breakpoints: Breakpoints, responsive: Record<string, any> | T | T[] | undefined, iterator: Iterator<T>) => void;
export {};
