/// <reference types="node" />
import Transport, { TransportStreamOptions } from 'winston-transport';
import { AxiomWithoutBatching } from '@axiomhq/js';
import type { ClientOptions } from '@axiomhq/js';
export interface WinstonOptions extends TransportStreamOptions, ClientOptions {
    dataset?: string;
}
export declare class WinstonTransport extends Transport {
    client: AxiomWithoutBatching;
    dataset: string;
    batch: object[];
    batchCallback: (err: Error | null) => void;
    batchTimeoutId?: NodeJS.Timeout;
    constructor(opts: WinstonOptions);
    log(info: any, callback: () => void): void;
    private request;
    flush(callback?: (err: Error | null) => void): void;
}
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