import { Condition, QueryFilter, QueryString } from './QueryFilter';
export declare class QueryFilterImpl implements QueryFilter {
    readonly queryString: QueryString;
    constructor(queryString: QueryString);
    addCondition(condition: Condition): void;
    removeCondition(condition: Condition): void;
    toggleCondition(condition: Condition): void;
    hasCondition(condition: Condition): boolean;
}