AWS Single Sign-On Admin Update: Relax constraint on List* API pagination tokens to include underscore character

Author: AWS

.changes/next-release/feature-AWSSingleSignOnAdmin-84c7a2c.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AWS Single Sign-On Admin",
+    "contributor": "",
+    "description": "Relax constraint on List* API pagination tokens to include underscore character"
+}

services/ssoadmin/src/main/resources/codegen-resources/service-2.json

@@ -1954,7 +1954,7 @@
     "Token":{
       "type":"string",
       "max":2048,
-      "pattern":"^[-a-zA-Z0-9+=/]*"
+      "pattern":"^[-a-zA-Z0-9+=/_]*"
     },
     "UUId":{
       "type":"string",