/// <reference types="node" />
import { format, inspect } from "util";
import { $NodeJS } from "../typings/$types.js";
import { $LogArgs, $Scope } from "./$types.js";
import { Debug, DebugCreater } from "./common.js";
/**
 * This is the Node.js implementation of `debug()`.
 */
declare class NodejsDebugCreater extends DebugCreater<number> {
    get colorTypeName(): "node";
    init?(debug: Debug<number>): void;
    get utilFormat(): typeof format;
    get utilInspect(): typeof inspect;
    get colors(): number[];
    /**
     * Build up the default `inspectOpts` object from the environment variables.
     *
     *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
     */
    inspectOpts: {
        [key: string]: number | boolean | null;
    };
    canUseColors(): boolean;
    /**
     * Adds ANSI color escape codes if enabled.
     *
     * @api public
     */
    formatArgs(debug: Debug<number>, args: $LogArgs, scope?: $Scope<number>): $LogArgs;
    get nodeProcess(): $NodeJS.Process;
    /**
     * Invokes `util.format()` with the specified arguments and writes to stderr.
     */
    printArgs(debug: Debug<number>, args: $LogArgs, scope?: $Scope<number>): void;
    /**
     * Save `namespaces`.
     *
     * @param {String} namespaces
     * @api private
     */
    protected save(namespaces: string): void;
    /**
     * Load `namespaces`.
     *
     * @return {String} returns the previously persisted debug modes
     * @api private
     */
    protected load(): string;
    private readonly _htmlStylePlaceholder;
    formatters: {
        c: (debug: Debug<number>, v: unknown) => string;
        /**
         * Map %o to `util.inspect()`, all on a single line.
         */
        o: (debug: Debug<number>, v: unknown) => string;
        /**
         * Map %O to `util.inspect()`, allowing multiple lines if needed.
         */
        O: (debug: Debug<number>, v: unknown) => string;
        t(_debug: Debug<number>, v: unknown): string;
        s(debug: Debug<number>, v: unknown): string;
        d(debug: Debug<number>, v: unknown): string;
    };
}
declare const DebugCreaterFactory: () => NodejsDebugCreater;
export default DebugCreaterFactory;