import build from "pino-abstract-transport";
import { ILogtailOptions } from "@logtail/types";
export interface PinoLog {
    level: number;
    [key: string]: any;
}
export interface IPinoLogtailOptions {
    sourceToken: string;
    options: Partial<ILogtailOptions>;
}
export declare function logtailTransport(options: IPinoLogtailOptions): Promise<import("stream").Transform & build.OnUnknown>;