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