import type { Nitro } from "nitro/types";
/**
 * Starts capturing the dev bundler's live virtual-module map for `nitro`.
 * Call once per dev Nitro instance, before its first build.
 */
export declare function captureDevLiveVirtualModules(nitro: Nitro): void;
/**
 * Mirrors one virtual-module set into the captured dev bundler map: ids
 * under `prefix` are replaced by `entries`. Returns `false` when no live
 * map was captured (the caller should tell the user a restart is needed).
 */
export declare function replaceDevLiveVirtualModules(nitro: object, input: {
    readonly entries: Readonly<Record<string, string>>;
    readonly prefix: string;
}): boolean;