import { SliceCompletePayload, Slice } from '@terascope/types';
import * as core from '../messenger/index.js';
import * as i from './interfaces.js';
export declare class Client extends core.Client {
    workerId: string;
    constructor(opts: i.ClientOptions);
    start(): Promise<void>;
    onExecutionFinished(fn: () => void): void;
    sendSliceComplete(payload: SliceCompletePayload): Promise<core.Message | null>;
    waitForSlice(fn?: i.WaitUntilFn, timeoutMs?: number): Promise<Slice | undefined>;
}
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