Problem: I'm using an AWS DynamoDb Enhanced Java client V2 in Kotlin (the details of the client might not be important), where I want to make a `BatchWriteItemEnhancedRequest` containing a bunch of requests. The standard usage according to the [docs](https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/examples-dynamodb-enhanced.html#dynamodb-enhanced-mapper-batchitems) goes:

```
val batchWriteItemEnhancedRequest = BatchWriteItemEnhancedRequest.builder()
    .addWriteBatch(
        WriteBatch.builder(MyClass::class.java)
            .mappedTableResource(myMappedTable)
            .addPutItem(putRequest1)
            .addPutItem(putRequest2)
            .addPutItem(putRequest3)
            .build()
    )
    .build()

```

Obviously this can't handle an anonymous list of `putRequest` items, only some known discrete values like `putRequest1` and `putRequest2`.

The builder for `WriteBatch` doesn't seem to allow adding lists of requests: [doc](https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/enhanced/dynamodb/model/WriteBatch.Builder.html)

The only way to do this, as I can see, is to make a for-loop that goes:

```
var writeBatchBuilder = WriteBatch.builder(MyClass::class.java)
    .mappedTableResource(myMappedTable)

for (request in putItemRequests){
    writeBatchBuilder = writeBatchBuilder.addPutItem(request)
}

val writeBatch = writeBatchBuilder.build()

```

Which seems horrible to me. There's got to be a more idiomatic way to do this right?