/**
 * Logger interface which is used in this project. Allows to specify actual logging in any way you like.
 * Every log contains an optional message and optional parameters. parameters should be logged in a way so that
 * the content is readable.
 *
 * @author Christopher Holomek
 * @since 26.09.2019
 */
export interface Logger {
    /**
     * Logs on fine level
     *
     * @param message
     *        message
     * @param optionalParams
     *        optional object
     */
    fine(message?: any, ...optionalParams: any[]): void;
    /**
     * Logs on debug level
     *
     * @param message
     *        message
     * @param optionalParams
     *        optional object
     */
    debug(message?: any, ...optionalParams: any[]): void;
    /**
     * Logs on info level
     *
     * @param message
     *        message
     * @param optionalParams
     *        optional object
     */
    info(message?: any, ...optionalParams: any[]): void;
    /**
     * Logs on warn level
     *
     * @param message
     *        message
     * @param optionalParams
     *        optional object
     */
    warn(message?: any, ...optionalParams: any[]): void;
    /**
     * Logs on error level
     *
     * @param message
     *        message
     * @param optionalParams
     *        optional object
     */
    error(message?: any, ...optionalParams: any[]): void;
}
/**
 * A default implementation of the {@link Logger} which is using {@link console}
 *
 * @author Christopher Holomek
 * @since 26.09.2019
 */
export declare class DefaultLogger implements Logger {
    fine(message?: any, ...optionalParams: any[]): void;
    debug(message?: any, ...optionalParams: any[]): void;
    info(message?: any, ...optionalParams: any[]): void;
    warn(message?: any, ...optionalParams: any[]): void;
    error(message?: any, ...optionalParams: any[]): void;
    private static log;
}