import { WorkflowRunRepository } from '../repositories/WorkflowRun.repository.js';
import { WorkflowRunActivityRepository } from '../repositories/WorkflowRunActivity.repository.js';
import { WorkflowRunAsyncActivityPendingRepository } from '../repositories/WorkflowRunAsyncActivityPending.repository.js';
import { DatabaseService } from '../services/Database.service.js';
export declare class WorkflowRunActivityFindById {
    private readonly workflowRunRepository;
    private readonly workflowRunActivityRepository;
    private readonly workflowRunAsyncActivityPendingRepository;
    private readonly database;
    constructor(workflowRunRepository: WorkflowRunRepository, workflowRunActivityRepository: WorkflowRunActivityRepository, workflowRunAsyncActivityPendingRepository: WorkflowRunAsyncActivityPendingRepository, database: DatabaseService);
    findById(runId: string, activityId: string): Promise<{
        input: unknown;
        output: unknown;
        kind: "sync";
        id: string;
        type: string;
        status: import("../models/WorkflowRunActivity.js").WorkflowRunActivityStatus;
        settledAt: Date | null;
        hasChildren: boolean;
        createdAt: Date;
    } | {
        input: unknown;
        output: unknown;
        kind: "async";
        pendingStatus: import("../models/WorkflowRunActivity.js").AsyncActivityPendingStatus | null;
        id: string;
        type: string;
        status: import("../models/WorkflowRunActivity.js").WorkflowRunActivityStatus;
        settledAt: Date | null;
        hasChildren: boolean;
        createdAt: Date;
    }>;
    private toJSON;
}