export declare enum CssUrl {
    inline = "inline",
    none = "none"
}
export interface WorkerOptions {
    filePath: string;
    basePath: string;
    browserslistData: string[];
    cssUrl?: CssUrl;
    styleIncludePaths?: string[];
}
export interface WorkerResult {
    css: string;
    warnings: string[];
}
export declare class StylesheetProcessor {
    readonly basePath: string;
    readonly cssUrl?: CssUrl;
    readonly styleIncludePaths?: string[];
    private readonly browserslistData;
    private readonly styleSheetProcessorWorker;
    constructor(basePath: string, cssUrl?: CssUrl, styleIncludePaths?: string[]);
    process(filePath: string): string;
}