AWS Lambda Update: Allow empty list for function response types

Author: AWS

.changes/next-release/feature-AWSLambda-ad9e3dc.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AWS Lambda",
+    "contributor": "",
+    "description": "Allow empty list for function response types"
+}

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

@@ -2358,7 +2358,7 @@
       "type":"list",
       "member":{"shape":"FunctionResponseType"},
       "max":1,
-      "min":1
+      "min":0
     },
     "FunctionVersion":{
       "type":"string",
@@ -3105,7 +3105,6 @@
     },
     "LayerPermissionAllowedAction":{
       "type":"string",
-      "max":22,
       "pattern":"lambda:GetLayerVersion"
     },
     "LayerPermissionAllowedPrincipal":{
@@ -3746,7 +3745,6 @@
     },
     "OrganizationId":{
       "type":"string",
-      "max":34,
       "pattern":"o-[a-z0-9]{10,32}"
     },
     "PackageType":{
@@ -3793,7 +3791,7 @@
     },
     "Principal":{
       "type":"string",
-      "pattern":"[^\\s]+"
+      "pattern":".*"
     },
     "ProvisionedConcurrencyConfigList":{
       "type":"list",
@@ -4355,7 +4353,6 @@
     },
     "SourceOwner":{
       "type":"string",
-      "max":12,
       "pattern":"\\d{12}"
     },
     "State":{