import type { AttestationSource } from './socket';
/**
 * Minimal Linux SNP guest ioctl helper.
 *
 * Python is the native boundary because it is already required by the Ubuntu
 * cloud image, `ctypes` is standard-library code, and Bun documents its own FFI
 * as experimental. Arguments are passed directly, never through a shell.
 */
export declare const SNP_REPORT_HELPER: string;
export interface SnpAttestationOptions {
    device?: string;
    python?: string;
    timeoutMs?: number;
    spawn?: typeof Bun.spawn;
    exists?: (path: string) => boolean;
}
/** A real PSP report source. Device presence alone is never called attestation. */
export declare function createSnpAttestationSource(options?: SnpAttestationOptions): AttestationSource;