export type RootElementType = {
    [prop in 'px' | 'rpx']?: number;
};
export interface PostcssPluginPixelOptions {
    /**
     * (Number|Object) The root element font size. Default is 100.
     * If rootValue is an object, for example { px: 50, rpx: 100 }, it will replace rpx to 1/100 rem , and px to 1/50 rem.
     * px, rpx is target unit you want to replace
     * @default rootValue={ px: 100, rpx: 1 }
     */
    rootValue?: RootElementType;
    /**
     * The unit you want to output
     * @default rem
     */
    outputUnit?: 'rem' | 'rpx';
    /**
     * The decimal numbers to allow the REM units to grow to.
     * @default 5
     */
    unitPrecision?: number;
    /**
     * Default is an empty array that means disable the white list and enable all properties.
     * Values need to be exact matches.
     * @default []
     */
    propWhiteList?: Array<string | RegExp>;
    /**
     * The properties that should not change from px to rem
     * Values need to be exact matches.
     * @default []
     */
    propBlackList?: Array<string | RegExp>;
    /**
     * The selectors to ignore and leave as px
     * @example
     * If value is string, it checks to see if selector contains the string.
     *  - ['body'] will match .body-class
     * If value is regexp, it checks to see if the selector matches the regexp.
     *  - [/^body$/] will match body but not .body
     * @default []
     */
    selectorBlackList?: Array<string | RegExp>;
    /**
     * a way to have a single property ignored.
     * when ignoreIdentifier enabled, then replace would be set to true automatically.
     */
    ignoreIdentifier?: string;
    /**
     * replaces rules containing rems instead of adding fallbacks.
     * @example replace rule ("font-size: 15px;") into ("font-size: 0.15rem")
     * @default true
     */
    replace?: boolean;
    /**
     * (Reg) a way to exclude some folder,eg. /(node_module)/.
     * @default false
     */
    exclude?: RegExp | null;
    /**
     * Allow px to be converted in media queries.
     * @default false
     */
    mediaQuery?: boolean;
    /**
     * Set the minimum pixel value to replace.
     * @default 0
     */
    minPixelValue?: number;
}