import { DirectionProps } from "../types";
export declare function resolveNumber(val?: string | number): string | undefined;
interface RtlProps {
    /** Return value for left-to-right */
    ltr: string;
    /** Return value for right-to-left */
    rtl: string;
}
export declare function direction({ ltr, rtl }: RtlProps): ({ $rtl }: DirectionProps) => string;
export declare function makeDefault<T, R>(func: (props: T) => R): (defaults: T) => (props: T) => R;
export declare function filterStyleProps(props: object): {
    [k: string]: any;
};
export {};