### 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,
        table_name: TableName,
        time_to_live_specification: TimeToLiveSpecification,
    ) -> UpdateTimeToLiveOutput:
        
        backend = DynamoDBRegion.get()
        backend.ttl_specifications[table_name] = time_to_live_specification
        return UpdateTimeToLiveOutput(TimeToLiveSpecification=time_to_live_specification)
    def create_global_table(
        self, context: RequestContext, global_table_name: TableName, replication_group: ReplicaList
    ) -> CreateGlobalTableOutput:
        if global_table_name in DynamoDBRegion.GLOBAL_TABLES:
            raise GlobalTableAlreadyExistsException("Global table with this name already exists")
        replication_group = [grp.copy() for grp in replication_group or []]
        data = {"GlobalTableName": global_table_name, "ReplicationGroup": replication_group}
        DynamoDBRegion.GLOBAL_TABLES[global_table_name] = data
        for group in replication_group:
            group["ReplicaStatus"] = "ACTIVE"
            group["ReplicaStatusDescription"] = "Replica active"
        return CreateGlobalTableOutput(GlobalTableDescription=data)
    def describe_global_table(