Kotlin Add the Neptune follow

.doc_gen/metadata/neptune_metadata.yaml

@@ -5,6 +5,15 @@ neptune_Hello:
   synopsis: get started using &neptune;.
   category: Hello
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.hello.main
     Python:
       versions:
         - sdk_version: 3
@@ -131,6 +140,15 @@ neptune_ExecuteGremlinQuery:
     neptune: {ExecuteGremlinQuery}
 neptune_DeleteDBSubnetGroup:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.delete.subnet.group.main
     Python:
       versions:
         - sdk_version: 3
@@ -152,6 +170,15 @@ neptune_DeleteDBSubnetGroup:
     neptune: {DeleteDBSubnetGroup}
 neptune_DeleteDBCluster:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.delete.cluster.main
     Python:
       versions:
         - sdk_version: 3
@@ -173,6 +200,15 @@ neptune_DeleteDBCluster:
     neptune: {DeleteDBCluster}
 neptune_DeleteDBInstance:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.delete.instance.main
     Python:
       versions:
         - sdk_version: 3
@@ -194,6 +230,15 @@ neptune_DeleteDBInstance:
     neptune: {DeleteDBInstance}
 neptune_StartDBCluster:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.start.cluster.main
     Python:
       versions:
         - sdk_version: 3
@@ -215,6 +260,15 @@ neptune_StartDBCluster:
     neptune: {StartDBCluster}
 neptune_StopDBCluster:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.stop.cluster.main
     Python:
       versions:
         - sdk_version: 3
@@ -236,6 +290,15 @@ neptune_StopDBCluster:
     neptune: {StopDBCluster} 
 neptune_DescribeDBClusters:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.describe.cluster.main
     Python:
       versions:
         - sdk_version: 3
@@ -257,6 +320,15 @@ neptune_DescribeDBClusters:
     neptune: {DescribeDBClusters}
 neptune_DescribeDBInstances:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.describe.dbinstance.main
     Python:
       versions:
         - sdk_version: 3
@@ -278,6 +350,15 @@ neptune_DescribeDBInstances:
     neptune: {DescribeDBInstances} 
 neptune_CreateDBInstance:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.create.dbinstance.main
     Python:
       versions:
         - sdk_version: 3
@@ -299,6 +380,15 @@ neptune_CreateDBInstance:
     neptune: {CreateDBInstance} 
 neptune_CreateDBCluster:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.create.cluster.main
     Python:
       versions:
         - sdk_version: 3
@@ -320,6 +410,15 @@ neptune_CreateDBCluster:
     neptune: {CreateDBCluster}  
 neptune_CreateDBSubnetGroup:
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.create.subnet.main
     Python:
       versions:
         - sdk_version: 3
@@ -351,6 +450,15 @@ neptune_Scenario:
     - Delete the &neptune; Assets.
   category: Basics
   languages:
+    Kotlin:
+      versions:
+        - sdk_version: 1
+          github: kotlin/services/neptune
+          sdkguide:
+          excerpts:
+            - description:
+              snippet_tags:
+                - neptune.kotlin.scenario.main
     Python:
       versions:
         - sdk_version: 3

kotlin/services/neptune/.gitignore

@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

kotlin/services/neptune/README.md

@@ -0,0 +1,123 @@
+# Neptune code examples for the SDK for Kotlin
+
+## Overview
+
+Shows how to use the AWS SDK for Kotlin to work with Amazon Neptune.
+
+<!--custom.overview.start-->
+<!--custom.overview.end-->
+
+_Neptune is a serverless graph database designed for superior scalability and availability._
+
+## ⚠ Important
+
+* Running this code might result in charges to your AWS account. For more details, see [AWS Pricing](https://aws.amazon.com/pricing/) and [Free Tier](https://aws.amazon.com/free/).
+* Running the tests might result in charges to your AWS account.
+* We recommend that you grant your code least privilege. At most, grant only the minimum permissions required to perform the task. For more information, see [Grant least privilege](https://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html#grant-least-privilege).
+* This code is not tested in every AWS Region. For more information, see [AWS Regional Services](https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services).
+
+<!--custom.important.start-->
+<!--custom.important.end-->
+
+## Code examples
+
+### Prerequisites
+
+For prerequisites, see the [README](../../README.md#Prerequisites) in the `kotlin` folder.
+
+
+<!--custom.prerequisites.start-->
+<!--custom.prerequisites.end-->
+
+### Get started
+
+- [Hello Neptune](src/main/java/com/example/neptune/HelloNeptune.kt#L9) (`DescribeDBClustersPaginator`)
+
+
+### Basics
+
+Code examples that show you how to perform the essential operations within a service.
+
+- [Learn the basics](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt)
+
+
+### Single actions
+
+Code excerpts that show you how to call individual service functions.
+
+- [CreateDBCluster](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L546)
+- [CreateDBInstance](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L510)
+- [CreateDBSubnetGroup](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L583)
+- [DeleteDBCluster](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L204)
+- [DeleteDBInstance](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L275)
+- [DeleteDBSubnetGroup](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L179)
+- [DescribeDBClusters](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L400)
+- [DescribeDBInstances](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L447)
+- [StartDBCluster](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L344)
+- [StopDBCluster](src/main/java/com/example/neptune/scenerio/NeptuneScenario.kt#L372)
+
+
+<!--custom.examples.start-->
+<!--custom.examples.end-->
+
+## Run the examples
+
+### Instructions
+
+
+<!--custom.instructions.start-->
+<!--custom.instructions.end-->
+
+#### Hello Neptune
+
+This example shows you how to get started using Neptune.
+
+
+#### Learn the basics
+
+This example shows you how to do the following:
+
+- Create an Amazon Neptune Subnet Group.
+- Create an Neptune Cluster.
+- Create an Neptune Instance.
+- Check the status of the Neptune Instance.
+- Show Neptune cluster details.
+- Stop the Neptune cluster.
+- Start the Neptune cluster.
+- Delete the Neptune Assets.
+
+<!--custom.basic_prereqs.neptune_Scenario.start-->
+<!--custom.basic_prereqs.neptune_Scenario.end-->
+
+
+<!--custom.basics.neptune_Scenario.start-->
+<!--custom.basics.neptune_Scenario.end-->
+
+
+### Tests
+
+⚠ Running tests might result in charges to your AWS account.
+
+
+To find instructions for running these tests, see the [README](../../README.md#Tests)
+in the `kotlin` folder.
+
+
+
+<!--custom.tests.start-->
+<!--custom.tests.end-->
+
+## Additional resources
+
+- [Neptune User Guide](https://docs.aws.amazon.com/neptune/latest/userguide/intro.html)
+- [Neptune API Reference](https://docs.aws.amazon.com/neptune/latest/apiref/Welcome.html)
+- [SDK for Kotlin Neptune reference](https://sdk.amazonaws.com/kotlin/api/latest/dynamodb/index.html)
+
+<!--custom.resources.start-->
+<!--custom.resources.end-->
+
+---
+
+Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+
+SPDX-License-Identifier: Apache-2.0