Update PHPDocs

lib/Customer.php

@@ -21,7 +21,7 @@
  * @property int $created Time at which the object was created. Measured in seconds since the Unix epoch.
  * @property null|string $currency Three-letter <a href="https://stripe.com/docs/currencies">ISO code for the currency</a> the customer can be charged in for recurring billing purposes.
  * @property null|string|\Stripe\Account|\Stripe\AlipayAccount|\Stripe\BankAccount|\Stripe\BitcoinReceiver|\Stripe\Card|\Stripe\Source $default_source <p>ID of the default payment source for the customer.</p><p>If you are using payment methods created via the PaymentMethods API, see the <a href="https://stripe.com/docs/api/customers/object#customer_object-invoice_settings-default_payment_method">invoice_settings.default_payment_method</a> field instead.</p>
- * @property null|bool $delinquent When the customer's latest invoice is billed by charging automatically, delinquent is true if the invoice's latest charge is failed. When the customer's latest invoice is billed by sending an invoice, delinquent is true if the invoice is not paid by its due date.
+ * @property null|bool $delinquent <p>When the customer's latest invoice is billed by charging automatically, <code>delinquent</code> is <code>true</code> if the invoice's latest charge failed. When the customer's latest invoice is billed by sending an invoice, <code>delinquent</code> is <code>true</code> if the invoice isn't paid by its due date.</p><p>If an invoice is marked uncollectible by <a href="https://stripe.com/docs/billing/automatic-collection">dunning</a>, <code>delinquent</code> doesn't get reset to <code>false</code>.</p>
  * @property null|string $description An arbitrary string attached to the object. Often useful for displaying to users.
  * @property null|\Stripe\Discount $discount Describes the current discount active on the customer, if there is one.
  * @property null|string $email The customer's email address.

lib/Invoice.php

@@ -45,6 +45,7 @@
  * @property string $object String representing the object's type. Objects of the same type share the same value.
  * @property null|string $account_country The country of the business associated with this invoice, most often the business creating the invoice.
  * @property null|string $account_name The public name of the business associated with this invoice, most often the business creating the invoice.
+ * @property null|(string|\Stripe\TaxId)[] $account_tax_ids The account tax IDs associated with the invoice. Only editable when the invoice is a draft.
  * @property int $amount_due Final amount due at this time for this invoice. If the invoice's total is smaller than the minimum charge amount, for example, or if there is account credit that can be applied to the invoice, the <code>amount_due</code> may be 0. If there is a positive <code>starting_balance</code> for the invoice (the customer owes money), the <code>amount_due</code> will also take that into account. The charge that gets generated for the invoice will be for the amount specified in <code>amount_due</code>.
  * @property int $amount_paid The amount, in %s, that was paid.
  * @property int $amount_remaining The amount remaining, in %s, that is due.