feat: MSG-9000: document duplicate-vetting rejection on order brand external vetting

Author: stainless-app[bot]

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 1037
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/telnyx/telnyx-7b1e3a7121542084b48908b0f883f893cd8c6d641d637c613e009fb79c8aafc4.yml
-openapi_spec_hash: 70a95e0804087a3dd65087eee654465b
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/telnyx/telnyx-14ed8a7e9d2b314b6d351bb13357acdeac16ffcf43fad7543dd04d9583b8f033.yml
+openapi_spec_hash: 12552068089591be162d789a1fd4edb0
 config_hash: d3b972f90f1bbecf92ef9592fae471fa

src/telnyx/resources/messaging_10dlc/brand/external_vetting.py

@@ -146,7 +146,11 @@ def order(
         timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ExternalVettingOrderResponse:
         """
-        Order new external vetting for a brand
+        Order new external vetting for a brand.
+
+        Duplicate orders for the same `evpId` and `vettingClass` return `400` with code
+        `10012` if a successful vetting exists within the last 180 days, or one is
+        currently being processed. Failed vettings can be retried immediately.
 
         Args:
           evp_id: External vetting provider ID for the brand.
@@ -302,7 +306,11 @@ async def order(
         timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ExternalVettingOrderResponse:
         """
-        Order new external vetting for a brand
+        Order new external vetting for a brand.
+
+        Duplicate orders for the same `evpId` and `vettingClass` return `400` with code
+        `10012` if a successful vetting exists within the last 180 days, or one is
+        currently being processed. Failed vettings can be retried immediately.
 
         Args:
           evp_id: External vetting provider ID for the brand.