export declare type FileLoggerConfig = FileLoggerConfigNew | FileLoggerConfigAppend;
declare type FileLoggerConfigNew = {
    mode: 'NEW_FILE';
    path: string;
    namePattern: string;
};
declare type FileLoggerConfigAppend = {
    mode: 'APPEND_FILE';
    path: string;
};
export declare const FileLogger: (config: FileLoggerConfig) => (input: string) => void;
export {};