import { IFetchOptions } from "rdf-test-suite/lib/Util";
import { IDataSource } from './testcase/ldf/IDataSource';
/**
 * A class with utility functions.
 */
export declare class LdfUtil {
    /**
     * Removes the prefix of a resource. Presuming the prefix ends wih '#'
     * @param resourceIRI A string representing the IRI of the resource
     */
    static removePrefix(resourceIRI: string): string;
    /**
     * Temporarily fetch a file for the query engine
     * @param folder: The folder where the temporary file should be saved
     * @param source: The IDataSource representing the source that should be fetched
     * @param {IFetchOptions} options Options for fetching.
     */
    static fetchFile(folder: string, source: IDataSource, options?: IFetchOptions): Promise<string>;
}