import React from 'react';
export declare type Spacing = number | string | undefined;
export declare type SpacingFunc = (size?: number | string) => Spacing;
export declare const defaultSpacingFunc: SpacingFunc;
export declare const SpacingFuncContext: React.Context<SpacingFunc>;
export declare const useSpacingFunc: () => SpacingFunc;
export declare const useSpacing: (size?: string | number | undefined) => Spacing;
export interface SpacingFuncProviderProps {
    spacingFunc?: SpacingFunc;
}
export declare const SpacingFuncProvider: React.FC<SpacingFuncProviderProps>;