export declare enum LogLevel {
    /**
     * Nothing will be logged (default)
     */
    NONE = 0,
    /**
     * Only errors will be logged.
     */
    ERROR = 1,
    /**
     * Warnings and errors will be logged.
     */
    WARNING = 2,
    /**
     * Info, warnings and errors will be logged.
     */
    INFO = 3,
    /**
     * Debug information, info, warnings and errors will be logged.
     */
    DEBUG = 4
}
export interface Logger {
    setLogLevel(level: LogLevel): void;
    error(...input: unknown[]): void;
    warning(...input: unknown[]): void;
    info(...input: unknown[]): void;
    debug(...input: unknown[]): void;
    log(...input: unknown[]): void;
    startGroup(label: string, level: LogLevel): void;
    endGroup(): void;
}
/**
 * Logs input to the window.console if the loglevel is set.
 */
export declare class ConsoleLogger implements Logger {
    level: LogLevel;
    /**
     * Creates a new ConsoleLogger.
     *
     * @param logLevel The minimum severity a message needs to have to appear in the log (default NONE)
     */
    constructor(logLevel?: LogLevel);
    /**
     * Sets the minimum loglevel required for logs to appear.
     *
     * @param level The desired level.
     */
    setLogLevel(level: LogLevel): void;
    /**
     * Logs data if the severity is at or above the current loglevel.
     *
     * @param level The severity of the message.
     * @param input The data to log.
     */
    protected writeLog(level: LogLevel, ...input: unknown[]): void;
    /**
     * Write debug logging.
     *
     * @param input The data to log.
     */
    log(...input: unknown[]): void;
    /**
     * Logs detailed debug information.
     *
     * @param input The data to log.
     */
    debug(...input: unknown[]): void;
    /**
     * Logs information.
     *
     * @param input The data to log.
     */
    info(...input: unknown[]): void;
    /**
     * Logs a warning.
     *
     * @param input The data to log.
     */
    warning(...input: unknown[]): void;
    /**
     * Logs an error.
     *
     * @param input The data to log.
     */
    error(...input: unknown[]): void;
    /**
     * Starts a logging group.
     *
     * @param label The label for this group.
     * @param level The log level when to show this bug. Defaults to `LogLevel.DEBUG`.
     */
    startGroup(label: string, level?: LogLevel): void;
    /**
     * Ends the logging group that is currently active.
     */
    endGroup(): void;
}
declare const logger: ConsoleLogger;
export default logger;