import type { FilesystemMountConfig } from '@mastra/core/workspace';
import type { MountContext } from './types.js';
/**
 * GCS mount config for E2B (mounted via gcsfuse).
 *
 * If credentials are not provided, the bucket will be mounted as read-only
 * using anonymous access (for public buckets only).
 */
export interface E2BGCSMountConfig extends FilesystemMountConfig {
    type: 'gcs';
    /** GCS bucket name */
    bucket: string;
    /** Service account key JSON (optional - omit for public buckets) */
    serviceAccountKey?: string;
    /**
     * GCS key prefix to scope the mount (without trailing slash).
     * When set, gcsfuse uses --only-dir to mount only this subdirectory, so
     * sandbox paths map directly to prefixed GCS keys.
     */
    prefix?: string;
}
/**
 * Mount a GCS bucket using gcsfuse.
 *
 * When `config.prefix` is set, gcsfuse uses `--only-dir` to mount only that
 * subdirectory, aligning sandbox paths with the prefixed GCS keys (mirrors the
 * S3 `bucket:/prefix` and Azure `--subdirectory` mounts).
 */
export declare function mountGCS(mountPath: string, config: E2BGCSMountConfig, ctx: MountContext): Promise<void>;
//# sourceMappingURL=gcs.d.ts.map