import { Query } from "./query";
/**
 * The operation types that can be used for comparison operations
 *
 * operator == or = is 'equals'
 * operator != is 'not equals'
 */
export type QueryContainsOperator = '==' | '=' | '!=';
export declare class ContainsQuery extends Query {
    private readonly operation;
    private readonly objects;
    constructor(operation: QueryContainsOperator, objects: Array<string>);
    toString(): string;
}