/**
 * ascii-folder.js
 * https://github.com/mplatt/fold-to-ascii-js
 *
 * This is a JavaScript port of the Apache Lucene ASCII Folding Filter.
 *
 * The Apache Lucene ASCII Folding Filter is licensed to the Apache Software
 * Foundation (ASF) under one or more contributor license agreements. See the
 * NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to You under the Apache
 * License, Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
export declare class ASCIIFolder {
    /**
     * Sanitize strings by converting alphabetic, numeric, and symbolic Unicode characters which are not contained in
     * the first 127 ASCII characters (the "Basic Latin" Unicode block) into a ASCII equivalents.
     *
     * @param str The string to be sanitized
     * @param replacement The character an unmapped character should be replaced with or null should the original
     * character be retained
     // tslint:disable-next-line:no-redundant-jsdoc
     * @returns The sanitized string
     */
    static fold(str?: string, replacement?: string): any;
    /**
     * Replaces a single character
     *
     * @param char The character to replace
     * @param replacement What string unmapped characters should be replaced with
     * @returns A string representing the replacement of the character
     */
    static replaceChar(char: any, replacement: any): any;
}