import type { MutateOptions } from '../types.js';
/**
 * These levels follow console.* naming,
 * so you can use console[level] safely.
 *
 * `debug` is not enabled by default, and is useful when debugging is needed.
 *
 * `log` is considered default level, and is enabled by default.
 *
 * `warn` is for warnings - things that are not super-severe to be an error, but should not happen
 *
 * `error` level would only log errors
 *
 * @experimental
 */
export type CommonLogLevel = 'debug' | 'log' | 'warn' | 'error';
export declare const commonLogLevelNumber: Record<CommonLogLevel, number>;
/**
 * Function that takes any number of arguments and logs them all.
 * It is expected that logged arguments are separated by "space", like console.log does.
 *
 * @experimental
 */
export type CommonLogFunction = (...args: any[]) => void;
export type CommonLogWithLevelFunction = (level: CommonLogLevel, args: any[]) => void;
/**
 * Interface is inspired/compatible with `console.*`
 * So, `console` is a valid CommonLogger implementation as-is.
 *
 * @experimental
 */
export interface CommonLogger {
    debug: CommonLogFunction;
    log: CommonLogFunction;
    warn: CommonLogFunction;
    error: CommonLogFunction;
}
/**
 * SimpleLogger that does nothing (noop).
 */
export declare const commonLoggerNoop: CommonLogger;
/**
 * Creates a "child" logger that is "limited" to the specified CommonLogLevel.
 */
export declare function createCommonLoggerAtLevel(logger?: CommonLogger, minLevel?: CommonLogLevel, opt?: MutateOptions): CommonLogger;
/**
 * Creates a "proxy" CommonLogger that pipes log messages to all provided sub-loggers.
 */
export declare function commonLoggerPipe(loggers: CommonLogger[]): CommonLogger;
/**
 * Creates a "child" CommonLogger with prefix (one or multiple).
 */
export declare function commonLoggerPrefix(logger: CommonLogger, ...prefixes: any[]): CommonLogger;
/**
 * Creates a CommonLogger from a single function that takes `level` and `args`.
 */
export declare function commonLoggerCreate(fn: CommonLogWithLevelFunction): CommonLogger;