import type { ICertificate } from './certificate';
import * as cloudwatch from '../../aws-cloudwatch';
import { Resource } from '../../core';
import type { CertificateReference } from '../../interfaces/generated/aws-certificatemanager-interfaces.generated';
/**
 * Shared implementation details of ICertificate implementations.
 *
 * @internal
 */
export declare abstract class CertificateBase extends Resource implements ICertificate {
    abstract readonly certificateArn: string;
    /**
     * If the certificate is provisionned in a different region than the
     * containing stack, this should be the region in which the certificate lives
     * so we can correctly create `Metric` instances.
     */
    protected readonly region?: string;
    get certificateRef(): CertificateReference;
    metricDaysToExpiry(props?: cloudwatch.MetricOptions): cloudwatch.Metric;
}