import type { EcoBuildPlugin } from '../../build/contracts/build-types.js';
import type { EcoPagesAppConfig } from '../../types/internal-types.js';
export type DevTransformVendorRegistryOptions = {
    appConfig: EcoPagesAppConfig;
    getRuntimeSpecifierMap: () => ReadonlyMap<string, string>;
    resolveVendorBundlePlugins?: () => Promise<readonly EcoBuildPlugin[]>;
};
/**
 * Lazily prebundles bare npm imports into cacheable `/assets/vendors/*` chunks.
 */
export declare class DevTransformVendorRegistry {
    private readonly appConfig;
    private readonly browserBundleService;
    private readonly getRuntimeSpecifierMap;
    private readonly resolveVendorBundlePlugins?;
    private readonly vendorsDir;
    private readonly cache;
    private readonly inFlight;
    constructor(options: DevTransformVendorRegistryOptions);
    resolveKnownVendorUrl(specifier: string): string | undefined;
    resolveVendorUrl(specifier: string): Promise<string>;
    tryHandleVendorRequest(pathname: string): Response | null;
    invalidateAll(): void;
    private createVendorResponse;
    private resolveExistingVendorPath;
    private prebundleSpecifier;
    private resolvePackageEntry;
}