import { BaseTransportOptions } from '../base/types';
import { DispatchServiceBatchOptions } from '../util/dispatchService/types';
import { VerbaWriteStream } from '../console/types';
export type FileTransportOutFile = string | VerbaWriteStream;
export type FileTransportOptions<TCode extends string | number | undefined = string | number | undefined, TData extends any = any> = Partial<Pick<BaseTransportOptions<TCode, TData>, 'deltaT' | 'outletPrefixes' | 'timePrefix' | 'codeRenderer' | 'dataRenderer' | 'prefix'>> & {
    /**
     * File to output log messages to. This may take the value of a path or an `fs.WriteStream`.
     *
     * @default './log.txt'
     *
     * @example
     * 'log.txt' // Path
     * fs.createWriteStream('log.txt', {flags : 'w'}) // Stream
     */
    outFile?: FileTransportOutFile;
    /**
     * Optional configuration for the batching of log messages.
     *
     * This can take the following values:
     *
     * * `undefined` - No batching
     * * `{ age: number, size: number }`
     *
     * @default undefined // No batching
     */
    batchOptions?: DispatchServiceBatchOptions;
    /**
     * The separator between log messages.
     *
     * This can be useful to override if you wish to use `console.log` instead of `process.stdout`, where the former
     * appends `'\n'`, but the latter does not.
     *
     * @default '\n'
     */
    separator?: string;
};