/// <reference path="../../../../src/typings/styled-system__core.d.ts" />
/** @module @airtable/blocks/ui/system: Appearance */ /** */
import { Config } from '@styled-system/core';
import { GlobalsNumber } from '../utils/csstype';
import { OptionalResponsiveProp } from '../utils/types';
/** */
export interface OpacityProps {
    /** Sets the transparency of an element or the degree to which content behind an element is visible. */
    opacity?: OptionalResponsiveProp<GlobalsNumber | string>;
}
export declare const config: Config;
export declare const opacity: import("@styled-system/core").styleFn;
export declare const opacityPropTypes: import("../../../private_utils").ObjectMap<string, import("prop-types").Validator<any>>;