import { FExecutionContext } from '@freemework/common';
import { WorkflowVirtualMachine } from '../WorkflowVirtualMachine.js';
import { ActivityElement } from './Activity.js';
import { NativeActivity } from './NativeActivity.js';
export declare class LoopActivity extends NativeActivity {
    static of(vmContext: WorkflowVirtualMachine.Context): LoopActivityElement;
    constructor(child: NativeActivity);
    protected onExecute(executionContext: FExecutionContext): Promise<void>;
}
export declare class LoopActivityElement extends ActivityElement<LoopActivity> {
    constructor(stackFrame: WorkflowVirtualMachine.StackFrame<LoopActivity>);
    get isBreakRequired(): boolean;
    break(): void;
}