import path from 'path';
export type FileNameFormatterOptions = {
    file: path.ParsedPath;
    keepFileExt: boolean;
    needsIndex: boolean;
    alwaysIncludeDate: boolean;
    fileNameSep?: string;
};
export type FileSyncNameFormatterOptions = FileNameFormatterOptions;
export type FileNameParserOptions = {
    file: path.ParsedPath;
    keepFileExt?: boolean;
    pattern?: string;
    fileNameSep?: string;
};
type FormattersInput = {
    date: string | undefined;
    index: number;
};
export type ParsedFilename = {
    filename: string;
    index: number;
    date?: string;
    timestamp?: number;
};
export type FileNameFormatterFn = (props: FormattersInput) => string;
export type FileNameParserFn = (f: string, p?: ParsedFilename) => ParsedFilename | null;
export type RollingFileWriteStreamOptions = {
    backups?: number;
    maxSize?: number;
    mode?: string | number;
    flags?: string;
    keepFileExt?: boolean;
    pattern?: string | true;
    encoding?: BufferEncoding;
    fileNameSep?: string;
};
export type RollingFileSyncWriteStreamOptions = RollingFileWriteStreamOptions;
export {};