type LogCategory = typeof categories[number];
declare const categories: readonly ["connection", "auth", "heartbeat", "send", "receive", "request", "retry", "error", "warn", "info"];
export type LogEntry = {
    category: LogCategory;
    message: string;
    data?: unknown;
    timestamp: string;
};
export type LogSink = (entry: LogEntry) => void;
export type Logger = {
    readonly connection: (message: string, data?: unknown) => void;
    readonly auth: (message: string, data?: unknown) => void;
    readonly heartbeat: (message: string, data?: unknown) => void;
    readonly send: (message: string, data?: unknown) => void;
    readonly receive: (message: string, data?: unknown) => void;
    readonly request: (message: string, data?: unknown) => void;
    readonly retry: (message: string, data?: unknown) => void;
    readonly error: (message: string, data?: unknown) => void;
    readonly warn: (message: string, data?: unknown) => void;
    readonly info: (message: string, data?: unknown) => void;
};
export declare const createLogger: (enabled: boolean, sink?: LogSink) => Logger;
export {};
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