import Transport from 'winston-transport';
import { DataDogTransportOptions } from './types';
interface QueryParams {
    hostname?: string;
    service?: string;
    ddsource: string;
    ddtags?: string;
}
interface Log {
    dd?: {
        [key: string]: string;
    };
}
declare class DataDogTransport extends Transport {
    private options;
    private ddsource;
    constructor(options: DataDogTransportOptions);
    get name(): string;
    log(log: Log, callback: () => void): Promise<void>;
    _getQueryParams(log: Log): QueryParams;
    _getUrl(queryParams: QueryParams): string;
    _getDDTags(log: Log): string;
}
export { DataDogTransport };