import { ConsoleMethod } from '../logger-types';
/**
 * Defines a base class which can double as an injection token in Angular. This allows the module to
 * replace the service with a different class without requiring users to use a @Inject() decorator.
 */
export declare abstract class LogService {
    /**
     * Debug method
     */
    abstract get debug(): ConsoleMethod<void>;
    /**
     * Error method
     */
    abstract get error(): ConsoleMethod<void>;
    /**
     * Info method
     */
    abstract get info(): ConsoleMethod<void>;
    /**
     * Log method
     */
    abstract get log(): ConsoleMethod<void>;
    /**
     * Warn method
     */
    abstract get warn(): ConsoleMethod<void>;
    /**
     * Gets the prefix for the logger
     */
    abstract getPrefix(): any;
    /**
     * Sets a new prefix for the logger.
     */
    abstract setPrefix(value: string): any;
    /**
     * Creates a new logger and appends the prefix.
     */
    abstract withPrefix(value?: string, separator?: string): LogService;
}