import type { FilesystemMountConfig } from '@mastra/core/workspace';
import type { MountContext } from './types.js';
/**
 * S3 mount config for E2B (mounted via s3fs-fuse).
 *
 * If credentials are not provided, the bucket will be mounted as read-only
 * using the `public_bucket=1` option (for public AWS S3 buckets only).
 *
 * Note: S3-compatible services (R2, MinIO, etc.) always require credentials.
 */
export interface E2BS3MountConfig extends FilesystemMountConfig {
    type: 's3';
    /** S3 bucket name */
    bucket: string;
    /** AWS region */
    region: string;
    /** S3 endpoint for S3-compatible storage (MinIO, etc.) */
    endpoint?: string;
    /** AWS access key ID (optional - omit for public buckets) */
    accessKeyId?: string;
    /** AWS secret access key (optional - omit for public buckets) */
    secretAccessKey?: string;
    /**
     * Optional prefix (subdirectory) to mount instead of the entire bucket.
     * Uses s3fs `bucket:/prefix` syntax. Leading/trailing slashes are normalized.
     */
    prefix?: string;
    /** Mount as read-only (even if credentials have write access) */
    readOnly?: boolean;
}
/**
 * Mount an S3 bucket using s3fs-fuse.
 */
export declare function mountS3(mountPath: string, config: E2BS3MountConfig, ctx: MountContext): Promise<void>;
//# sourceMappingURL=s3.d.ts.map