/**
 * 特殊的忽略值，当值为这些值时，才会被忽略
 *
 * @author chitanda
 * @date 2023-08-03 14:08:37
 * @export
 * @class specialIgnoredValues
 */
export declare class SpecialIgnoredValues {
    /**
     * 映射表
     *
     * @author chitanda
     * @date 2023-08-03 14:08:45
     * @protected
     * @type {Map<string, unknown>}
     */
    protected map: Map<string, unknown>;
    constructor();
    has(key: string): boolean;
    /**
     * 是否为特殊忽略值
     *
     * @author chitanda
     * @date 2023-08-03 14:08:14
     * @param {string} key
     * @param {unknown} val
     * @return {*}  {boolean}
     */
    is(key: string, val: unknown): boolean;
}
export declare const ignore: SpecialIgnoredValues;