/**
 * Copyright (c) 2025 Elara AI Pty Ltd
 * Licensed under BSL 1.1. See LICENSE for details.
 */
import type { StorageBackend } from '../storage/index.js';
/**
 * Materializes an environment into the repo-local cache and returns the
 * executable dirs to prepend to the runner's PATH.
 *
 * Warm environments (cache dir present) return immediately. Cold
 * environments build in a temp sibling directory and atomically rename into
 * place; when two processes race, the loser keeps the winner's build.
 *
 * @param storage - Storage backend holding the spec + blobs
 * @param repo - Repository path (the cache lives at `<repo>/envs/<hash>`)
 * @param envHash - Object hash of the beast2-encoded {@link EnvironmentSpec}
 * @returns PATH entries for the materialized environment
 * @throws {Error} for `image` environments (cloud-only) and failed builds
 */
export declare function materializeEnvironment(storage: StorageBackend, repo: string, envHash: string): Promise<string[]>;
//# sourceMappingURL=environment.d.ts.map