import { WorkflowVirtualMachine } from '../WorkflowVirtualMachine';
import { Activity, ActivityElement } from './Activity.js';
import { NativeActivity } from './NativeActivity.js';
export declare abstract class DataContextFactory<TDataContext> {
    abstract initDataContext(vmContext: WorkflowVirtualMachine.Context, dataContext: TDataContext): void;
    abstract createDataContext(vmContext: WorkflowVirtualMachine.Context): TDataContext;
}
export declare abstract class DataContextActivity<TDataContext> extends NativeActivity {
    private readonly _dataContextFactory;
    constructor(dataContextFactory: DataContextFactory<TDataContext>, ...children: ReadonlyArray<Activity>);
    get dataContextFactory(): DataContextFactory<TDataContext>;
}
export declare class DataContextActivityElement<TDataContext, TActivity extends DataContextActivity<TDataContext>> extends ActivityElement<TActivity> {
    private readonly _dataContextFactory;
    private _dataContext;
    constructor(stackFrame: WorkflowVirtualMachine.StackFrame<TActivity>);
    get dataContext(): TDataContext;
}