import * as ts from 'typescript';
export declare type InterpolateNameFn = (filePath: string, content: Buffer) => string;
/**
 * Options
 *
 * @export
 * @interface Opts
 */
export interface Opts {
    /**
     * Threshold of img that will be inlined
     */
    threshold?: number;
    /**
     * Callback that gets triggered every time we encounter
     * an img import
     * @param params Map of asset ID to its path
     */
    onImgExtracted(id: string, filePath: string): void;
    /**
     * webpack-style name interpolation
     *
     * @type {(InterpolateNameFn | string)}
     * @memberof Opts
     */
    interpolateName?: InterpolateNameFn | string;
}
export default function (opts?: Opts): (ctx: ts.TransformationContext) => ts.Transformer<ts.SourceFile>;