/**
 * Helpers for reading records out of a *plaintext* store (`encrypt: false`)
 * with native tooling — the programmatic core of a `noydb cat`-style unwrap.
 * See the plaintext/debug-store-mode design.
 */
import type { EncryptedEnvelope } from './types.js';
/**
 * Extract the record from a plaintext stored envelope, handling both layouts:
 *
 *   - **classic plaintext** (`encrypt: false`): the record is JSON in `_data`.
 *   - **debugPlaintext**: the record's fields are inlined beside the
 *     `_`-prefixed metadata (marked by `_debug`).
 *
 * Returns `null` for an empty/absent body. Throws if handed an **encrypted**
 * envelope (non-empty `_iv`) — there is no key here; decrypt through the vault
 * instead. Intended for record envelopes, not blob chunks.
 *
 * @example
 * ```ts
 * // node script over a to-file store, no vault needed:
 * const env = JSON.parse(readFileSync('data/acme/invoices/inv-1.json', 'utf8'))
 * console.log(readPlaintextRecord(env)) // → { id: 'inv-1', total: '120.00', … }
 * ```
 */
export declare function readPlaintextRecord<T = Record<string, unknown>>(envelope: EncryptedEnvelope): T | null;