/// <reference types="node" />
import type { AsyncLocalStorage } from 'async_hooks';
export declare type Writer = {
    write: (message: string) => void;
};
export declare type MessageContext = any;
export declare type RoarrGlobalState = Writer & {
    asyncLocalStorage?: AsyncLocalStorage<MessageContext>;
    sequence: number;
    versions: readonly string[];
};
export declare type SprintfArgument = boolean | number | string | null;
export declare type Message = {
    readonly context: MessageContext;
    readonly message: string;
    readonly sequence: string;
    readonly time: number;
    readonly version: string;
};
export declare type TranslateMessageFunction = (message: Message) => Message;
export declare type LogMethod = {
    (context: MessageContext, message: string, c?: SprintfArgument, d?: SprintfArgument, e?: SprintfArgument, f?: SprintfArgument, g?: SprintfArgument, h?: SprintfArgument, i?: SprintfArgument, j?: SprintfArgument): void;
    (message: string, b?: SprintfArgument, c?: SprintfArgument, d?: SprintfArgument, e?: SprintfArgument, f?: SprintfArgument, g?: SprintfArgument, h?: SprintfArgument, i?: SprintfArgument, j?: SprintfArgument): void;
};
export declare type Logger = LogMethod & {
    adopt: <T>(routine: () => Promise<T>, context: MessageContext) => Promise<T>;
    child: (context: MessageContext | TranslateMessageFunction) => Logger;
    debug: LogMethod;
    error: LogMethod;
    fatal: LogMethod;
    getContext: () => MessageContext;
    info: LogMethod;
    trace: LogMethod;
    warn: LogMethod;
};
export declare type MessageEventHandler = (message: Message) => void;