TransactionRollbackError behavior isn't documented

[MarkSFrancis]

From the transaction docs, it appears that no error will be thrown by calling rollback() on a transaction, but doing so will throw a TransactionRollbackError. Should the docs be updated?

Documented behavior:
The code provided in the docs:

const db = drizzle(...)
await db.transaction(async (tx) => {
  const [account] = await tx.select({ balance: accounts.balance }).from(accounts).where(eq(users.name, 'Dan'));
  if (account.balance < 100) {
    await tx.rollback()
    return
  }
  await tx.update(accounts).set({ balance: sql`${accounts.balance} - 100.00` }).where(eq(users.name, 'Dan'));
  await tx.update(accounts).set({ balance: sql`${accounts.balance} + 100.00` }).where(eq(users.name, 'Andrew'));
});

seems to be misleading, as the await before tx.rollback() is a no-op, and the return underneath will never be called. What will actually happen is that rollback() will throw an error, which is uncaught in this code example.

Actual behavior:

const db = drizzle(...)
await db.transaction(async (tx) => {
  const [account] = await tx.select({ balance: accounts.balance }).from(accounts).where(eq(users.name, 'Dan'));
  if (account.balance < 100) {
    // Throws a `TransactionRollbackError`
    tx.rollback();
  }
  await tx.update(accounts).set({ balance: sql`${accounts.balance} - 100.00` }).where(eq(users.name, 'Dan'));
  await tx.update(accounts).set({ balance: sql`${accounts.balance} + 100.00` }).where(eq(users.name, 'Andrew'));
});

This suggests that throwing was unintentional behavior, but according to this issue in the drizzle-orm repo, it is intentional but undocumented.