import { App } from "../../../cli/app";
import { WebpackModule } from "../../build/webpack";
export declare class StyleSheet extends WebpackModule {
    private usePostcss;
    test: RegExp;
    exclude: RegExp;
    constructor(usePostcss?: boolean);
    getLoader(app: App): (string | {
        loader: string;
        options: {
            postcssOptions: {
                plugins: (string | (string | {
                    config: string;
                })[])[];
            };
        };
    })[];
}