feat(api): api update (#381)

.stats.yml

@@ -1,2 +1,2 @@
 configured_endpoints: 101
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-b6d60f8edbdc94e65f06b0b002cc8e1f27aceccc67917bea849425701ba82fb8.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-52bd3046e73f201c4d08edfa92756791c015be907691a7893f8e7782cc2aea6f.yml

invoice.go

@@ -326,9 +326,8 @@ type Invoice struct {
 	// `None` will be returned.
 	Discount  interface{}                   `json:"discount,required"`
 	Discounts []shared.InvoiceLevelDiscount `json:"discounts,required"`
-	// When the invoice payment is due. The due date is null if the invoice is not yet
-	// finalized.
-	DueDate time.Time `json:"due_date,required,nullable" format:"date-time"`
+	// When the invoice payment is due.
+	DueDate time.Time `json:"due_date,required" format:"date-time"`
 	// If the invoice has a status of `draft`, this will be the time that the invoice
 	// will be eligible to be issued, otherwise it will be `null`. If `auto-issue` is
 	// true, the invoice will automatically begin issuing at this time.
@@ -2085,9 +2084,8 @@ type InvoiceFetchUpcomingResponse struct {
 	// `None` will be returned.
 	Discount  interface{}                   `json:"discount,required"`
 	Discounts []shared.InvoiceLevelDiscount `json:"discounts,required"`
-	// When the invoice payment is due. The due date is null if the invoice is not yet
-	// finalized.
-	DueDate time.Time `json:"due_date,required,nullable" format:"date-time"`
+	// When the invoice payment is due.
+	DueDate time.Time `json:"due_date,required" format:"date-time"`
 	// If the invoice has a status of `draft`, this will be the time that the invoice
 	// will be eligible to be issued, otherwise it will be `null`. If `auto-issue` is
 	// true, the invoice will automatically begin issuing at this time.