export declare class FilterOperator {
    _eq?: string | number;
    _gt?: string | number;
    _gte?: string | number;
    _in?: string[];
    _lt?: string | number;
    _lte?: string | number;
    _ne?: string | number;
    _nin?: string[] | number[];
    _like?: string;
    _ilike?: string;
    _exists?: boolean;
    _all?: string[] | number[];
    _any?: string[] | number[];
    _elemMatch?: FilterOperator;
}