import { AnyType } from '../types.js';
export { Debugger } from 'debug';
export declare const customInspectSymbol: unique symbol;
export declare enum LogLevel {
    ERROR = "error",
    WARN = "warn",
    INFO = "info",
    DEBUG = "debug",
    TRACE = "trace"
}
/**
 * Check if the namespace is enabled by log level
 * @param namespace - Debug namespace
 * @returns
 */
export declare function isLogEnabled(namespace: string): boolean;
export declare function setLogLevel(level: LogLevel): string | null | undefined;
export declare function getLogLevel(): LogLevel;
/**
 * Get the highest log level for the given namespace
 * @param namespace - Debug namespace
 * @returns
 */
export declare function getLogLevelForNamespace(namespace: string): LogLevel;
/**
 * React arguments to hide secrets
 * @param args - Args
 * @returns
 */
export declare function redactData(args: AnyType, secretKeys?: string[], secretVals?: string[]): any;
/**
 * Enable debug for the given namespaces
 * @param namespaces - Namespace list
 */
export declare function enableDebug(namespaces: string): void;
/**
 * Check if a debug namespace is enabled
 * @param namespace - Debug namespace
 */
export declare function isDebugEnabled(namespace: string): boolean;
/**
 * Set debug flags
 * @param settings - Debug settings
 */
export declare function setDebugSettings(settings: Record<string, boolean>): void;
/**
 * Use `util.inspect` to print out the value
 * @param value - Value
 * @param depth - Depth, default to 8
 * @returns
 */
export declare function inspectJson(value: unknown, depth?: number): string;
/**
 * Stringify the value with 2-space indentation
 * @param value - Value
 * @returns
 */
export declare function stringify(value: unknown): string;