import * as rds from 'aws-cdk-lib/aws-rds';
import { Construct } from 'constructs';
import { IWatchful } from './watchful';
/**
 * Options for defining alarms.
 */
export interface WatchDatabaseClusterOptions {
    /**
     * Max CPU utilization threshold in percent
     *
     * @defaultValue 80
     */
    readonly cpuUtilizationThreshold?: number;
    /**
     * Max freeable memory threshold in Byte
     *
     * @defaultValue 64000000
     */
    readonly freeableMemoryThreshold?: number;
}
/**
 * Properties for defining a WatchDatabaseCluster
 */
export interface WatchDatabaseClusterProps extends WatchDatabaseClusterOptions {
    /**
     * The reference to IWatchful class. Used internally.
     */
    readonly watchful: IWatchful;
    /**
     * The database cluster that should be watched.
     * [disable-awslint:ref-via-interface]
     */
    readonly databaseCluster: rds.DatabaseCluster;
}
/**
 * A Construct which creates the following alarms for database clusters:
 *
 * - cpu utilization
 * - freeable memory
 */
export declare class WatchDatabaseCluster extends Construct {
    private readonly watchful;
    private readonly rdsCluster;
    constructor(scope: Construct, id: string, props: WatchDatabaseClusterProps);
    private createCPUUtilizationMonitor;
    private createFreeableMemoryMonitor;
}