import { type AwsIamStore } from '../persistence/AwsIamStore.js';
import { type AwsService } from '../services.js';
export interface Indexer<T> {
    /**
     * The service that this indexer is for
     */
    awsService: AwsService;
    /**
     * The name of the indexer
     */
    name: string;
    /**
     * Get the cache for the execute method to update
     */
    getCache(storage: AwsIamStore): Promise<{
        data: T;
        lockId: string;
    }>;
    /**
     * Save the cache after the execute method has updated it
     *
     * @param storage the storage to save the cache to
     * @param cache the updated cache data to save
     * @param lockId the lock ID to use for validation
     * @returns true if the cache was saved successfully, false if there was an optimistic locking failure
     */
    saveCache(storage: AwsIamStore, cache: T, lockId: string): Promise<boolean>;
    /**
     * Update the the cache in place.
     *
     * @param existingCache the existing cache to update
     * @param accounts the accounts to update the cache for
     * @param regions the regions to update the cache for
     */
    updateCache: (existingCache: T, account: string, regions: string[], storage: AwsIamStore) => Promise<void>;
}
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