import type { Function as LightningCSSFunction, TokenOrValue } from 'lightningcss';
export declare class FunctionVisitor {
    [name: string]: (fn: LightningCSSFunction) => TokenOrValue;
    pixelRatio(fn: LightningCSSFunction): TokenOrValue;
    fontScale(fn: LightningCSSFunction): TokenOrValue;
    hairlineWidth(): TokenOrValue;
}