import type { ChangeSignal } from "../store/changeSignal.js";
import type { DevtoolsLogs, DevtoolsLatency } from "./types.js";
import { type LogBus } from "./logBus.js";
/** @internal */
export declare function formatLogArg(arg: unknown): string;
/** Format an array of console arguments into a single truncated log message string. */
export declare function formatLogMessage(args: readonly unknown[]): string;
/** Logs subsystem exposing the log-capture and latency-tracking facades. */
export interface LogsModule {
    logs: DevtoolsLogs;
    latency: DevtoolsLatency;
    /** The ring the facade writes through, for a reporter that needs the whole window at once. */
    bus: LogBus;
}
/** Create the logs subsystem that buffers captured console output and records latency samples. */
export declare const createLogsModule: (deps: {
    signal: ChangeSignal;
}) => LogsModule;