/**
 * Per-test D1 isolation. Registers vitest `beforeEach` + `afterEach` hooks
 * that (a) apply the framework migrations to `env.DB`, and (b) drop every
 * non-system table between tests so the next `beforeEach` re-applies from a
 * clean slate.
 *
 * Right for tests that mutate D1 (`test/integration/*.test.ts`). Cheap
 * enough for per-test isolation because singleWorker + in-memory D1 keeps
 * everything on one runtime instance.
 *
 *   describe('LeadStore', () => {
 *     withIsolatedD1();
 *
 *     it('upserts a lead', async () => {
 *       const leads = new LeadStore({ db: createDb(env.DB) });
 *       await leads.upsert('5511...', { name: 'Carlos' });
 *     });
 *   });
 *
 * Prerequisites in your `vitest.config.ts`:
 *
 *   - `defineWorkersProject` from `@cloudflare/vitest-pool-workers/config`
 *   - `singleWorker: true` under `poolOptions.workers`
 *   - `TEST_MIGRATIONS` binding populated via `readD1Migrations`
 *
 * See [`docs/TESTING.md`](../../docs/TESTING.md) for the full recipe.
 */
export declare function withIsolatedD1(): void;
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