import { IEventAggregator } from '@essential-projects/event_aggregator_contracts';
import { ITimerService } from '@essential-projects/timing_contracts';
import { IExecutionContextFacade, IProcessModelFacade, IProcessTokenFacade, Model, NextFlowNodeInfo, Runtime } from '@process-engine/process_engine_contracts';
import { FlowNodeHandler } from './index';
export declare class TimerBoundaryEventHandler extends FlowNodeHandler<Model.Base.FlowNode> {
    private _timerService;
    private _eventAggregator;
    private _decoratedHandler;
    constructor(timerService: ITimerService, eventAggregator: IEventAggregator, decoratedHandler: FlowNodeHandler<Model.Base.FlowNode>);
    private readonly timerService;
    private readonly eventAggregator;
    private readonly decoratedHandler;
    protected executeInternally(flowNode: Model.Base.FlowNode, token: Runtime.Types.ProcessToken, processTokenFacade: IProcessTokenFacade, processModelFacade: IProcessModelFacade, executionContextFacade: IExecutionContextFacade): Promise<NextFlowNodeInfo>;
    private _getTimerBoundaryEvent;
    private _initializeTimer;
    private _parseTimerDefinitionType;
    private _parseTimerDefinitionValue;
    private _startCycleTimer;
    private _startDurationTimer;
    private _startDateTimer;
}