import { FExecutionContext } from '@freemework/common';
import { Activity } from './Activity.js';
import { NativeActivity } from './NativeActivity.js';
export declare class TryCatchActivity extends NativeActivity {
    private readonly _exceptionMessageVariable;
    private readonly _exceptionStackVariable;
    constructor({ tryActivity, catchActivity, exceptionMessageVariable, exceptionStackVariable, }: {
        readonly tryActivity: Activity;
        readonly catchActivity: Activity;
        readonly exceptionMessageVariable: string;
        readonly exceptionStackVariable?: string;
    });
    protected onExecute(executionContext: FExecutionContext): Promise<void>;
}