### Is there an existing issue for this?

- [X] I have searched the existing issues and read the documentation

### Question

After configuring it  withEnv("DYNAMODB_WRITE_ERROR_PROBABILITY", "1.0") — it is expected to throw dynamo throuput exception , but throwing 500 error - `(Service: DynamoDb, Status Code: 500, Request ID: null, Extended Request ID: null)","operationType":"PutItem","kinesisRecordMetaData":{"recordInsertionDate":"01-01-2021"}}, Response - PutObjectResponse(ETag="5435b0664a1337227d380fbd83ebcc89")

### Anything else?

_No response_
self,
        context: RequestContext,
        request_items: BatchGetRequestMap,
        return_consumed_capacity: ReturnConsumedCapacity = None,
    ) -> BatchGetItemOutput:
        return self.forward_request(context)
    @handler("TransactWriteItems", expand=False)
    def transact_write_items(
        self,
        context: RequestContext,
        transact_write_items_input: TransactWriteItemsInput,
    ) -> TransactWriteItemsOutput:
        existing_items = []
        for item in transact_write_items_input["TransactItems"]:
            for key in ["Put", "Update", "Delete"]:
                inner_item = item.get(key)
                if inner_item: