import { IExecutionContextFacade, IFlowNodeHandlerFactory, IFlowNodeInstanceService, IProcessModelFacade, IProcessTokenFacade, Model, NextFlowNodeInfo, Runtime } from '@process-engine/process_engine_contracts';
import { IEventAggregator } from '@essential-projects/event_aggregator_contracts';
import { FlowNodeHandler } from './index';
export declare class ParallelGatewayHandler extends FlowNodeHandler<Model.Gateways.ParallelGateway> {
    private _eventAggregator;
    private _flowNodeHandlerFactory;
    private _flowNodeInstanceService;
    private _processWasTerminated;
    private _processTerminationMessage;
    constructor(eventAggregator: IEventAggregator, flowNodeHandlerFactory: IFlowNodeHandlerFactory, flowNodeInstanceService: IFlowNodeInstanceService);
    private readonly eventAggregator;
    private readonly flowNodeHandlerFactory;
    private readonly flowNodeInstanceService;
    protected executeInternally(flowNode: Model.Gateways.ParallelGateway, token: Runtime.Types.ProcessToken, processTokenFacade: IProcessTokenFacade, processModelFacade: IProcessModelFacade, executionContextFacade: IExecutionContextFacade): Promise<NextFlowNodeInfo>;
    private _createProcessTerminationSubscription;
    private _executeParallelBranches;
    private _executeBranchToJoinGateway;
}