import { KeyStoreParams, KeyType } from '../../modules/key';
import { ILogger } from '../logger';
import { SubscriptionCallback } from '../../types/quorum';
import { ProviderClient, ProviderTransaction } from '../../types/provider';
declare abstract class SubService<ClientProvider extends ProviderClient> {
    protected eventClient: ClientProvider;
    protected storeClient: ProviderClient;
    protected namespace: string;
    protected engineId: string;
    protected logger: ILogger;
    protected appId: string;
    constructor(eventClient: ClientProvider, storeClient: ProviderClient);
    abstract init(namespace: string, appId: string, engineId: string, logger: ILogger): Promise<void>;
    abstract transact(): ProviderTransaction;
    abstract mintKey(type: KeyType, params: KeyStoreParams): string;
    abstract subscribe(keyType: KeyType.QUORUM, callback: SubscriptionCallback, appId: string, topic?: string): Promise<void>;
    abstract unsubscribe(keyType: KeyType.QUORUM, appId: string, topic?: string): Promise<void>;
    abstract psubscribe(keyType: KeyType.QUORUM, callback: SubscriptionCallback, appId: string, topic?: string): Promise<void>;
    abstract punsubscribe(keyType: KeyType.QUORUM, appId: string, topic?: string): Promise<void>;
    abstract publish(keyType: KeyType, message: Record<string, any>, appId: string, topic?: string, transaction?: ProviderTransaction): Promise<boolean>;
}
export { SubService };