import { Assertion as CoreAssertion, NumericAssertionBuilder, GeneralAssertionBuilder } from './internal/assertion';
type DnsAssertionSource = 'RESPONSE_CODE' | 'RESPONSE_TIME' | 'TEXT_ANSWER' | 'JSON_ANSWER';
export type DnsAssertion = CoreAssertion<DnsAssertionSource>;
/**
 * Builder class for creating DNS monitor assertions.
 * Provides methods to create assertions for DNS query responses.
 *
 * @example
 * ```typescript
 * // Response time assertions
 * DnsAssertionBuilder.responseTime().lessThan(1000)
 * DnsAssertionBuilder.responseTime().greaterThan(100)
 *
 * // Response code assertions
 * DnsAssertionBuilder.responseCode().equals('NOERROR')
 * DnsAssertionBuilder.responseCode().equals('NXDOMAIN')
 * ```
 */
export declare class DnsAssertionBuilder {
    /**
     * Creates an assertion builder for DNS response codes.
     * @returns A general assertion builder for the response code.
     */
    static responseCode(): GeneralAssertionBuilder<DnsAssertionSource>;
    /**
     * Creates an assertion builder for DNS response time.
     * @returns A numeric assertion builder for response time in milliseconds.
     */
    static responseTime(): NumericAssertionBuilder<DnsAssertionSource, string>;
    /**
     * Creates an assertion builder for the answer in common plain text format.
     * @param regex An optional regular expression with at least one capture
     * group. If set, assertion operators will apply against the value of the
     * first capture group instead of the entire answer.
     * @returns A general assertion builder for the answer.
     */
    static textAnswer(regex?: string): GeneralAssertionBuilder<DnsAssertionSource>;
    /**
     * Creates an assertion builder for the JSON formatted answer.
     * @param property Optional JSON path to specific property (e.g., '$.Answer[0].data')
     * @returns A general assertion builder for the JSON formatted answer.
     */
    static jsonAnswer(property?: string): GeneralAssertionBuilder<DnsAssertionSource>;
}
export {};