/*!
 * V4Fire Core
 * https://github.com/V4Fire/Core
 *
 * Released under the MIT license
 * https://github.com/V4Fire/Core/blob/master/LICENSE
 */
export declare type LogLevel = 'info' | 'warn' | 'error';
export interface LogMessageOptions {
    context: string;
    logLevel?: LogLevel;
}
export interface Logger {
    (context: string | LogMessageOptions, ...details: unknown[]): void;
    (context: string | LogMessageOptions, error: Error, ...details: unknown[]): void;
}
export interface ExtendedLogger extends Logger {
    /**
     * Logs a message with the info level and specified context
     *
     * @param context - log record context
     * @param [details] - additional details
     */
    info(context: string, ...details: unknown[]): void;
    /**
     * Logs a message with the warning level and specified context
     *
     * @param context - log record context
     * @param [details] - additional details
     */
    warn(context: string, ...details: unknown[]): void;
    /**
     * Logs a message with the warning level and specified context
     *
     * @param context - log record context
     * @param error - thrown error
     * @param [details] - additional details
     */
    warn(context: string, error: Error, ...details: unknown[]): void;
    /**
     * Logs a message with the error level and specified context
     *
     * @param context - log record context
     * @param [details] - additional details
     */
    error(context: string, ...details: unknown[]): void;
    /**
     * Logs a message with the error level and specified context
     *
     * @param context - log record context
     * @param error - thrown error
     * @param [details] - additional details
     */
    error(context: string, error: Error, ...details: unknown[]): void;
    /**
     * Returns a new logging function with the specified namespace
     *
     * @param value
     *
     * @example
     * ```js
     * const log2 = log.namespace('global');
     * log2.info('res', 'hello');
     * // Prints context 'global:res'
     *
     * const log3 = log.namespace('super').namespace('global');
     * log3.info('res', 'hello');
     * // Prints context 'super:global:res'
     * ```
     */
    namespace(value: string): ExtendedLogger;
}