import build from "pino-abstract-transport";
import createWriteStream from "./httpStream";
import { defaultPreparePayload, extractPayloadMeta } from "./utils";
import { Level, LogEvent } from "./utils";
import { HttpClient, HttpClientOptions } from "logflare-transport-core";
interface LogflareTransportOptions extends HttpClientOptions {
    batchSize?: number;
    batchTimeout?: number;
    onError?: any;
    onPreparePayload?: any;
}
interface BatchInstance {
    sendBatch: () => Promise<void>;
    addEvent: (event: any) => Promise<void>;
    close: () => Promise<void>;
}
declare const createPinoBrowserSend: (options: HttpClientOptions) => (level: Level | number, logEvent: LogEvent) => void;
declare const logflarePinoVercel: (options: HttpClientOptions) => {
    stream: {
        write: (chunk: any) => void;
    };
    send: (level: Level | number, logEvent: LogEvent) => void;
};
declare const createBatchInstance: (options: LogflareTransportOptions, client: HttpClient) => BatchInstance;
export default function (options: LogflareTransportOptions): Promise<import("stream").Transform & build.OnUnknown>;
export { logflarePinoVercel, createPinoBrowserSend, createWriteStream, defaultPreparePayload, extractPayloadMeta, createBatchInstance, };