@Override
            void handleResponse(AbstractResponse abstractResponse) {
                ListClientMetricsResourcesResponse response = (ListClientMetricsResourcesResponse) abstractResponse;
                if (response.error().isFailure()) {
                    future.completeExceptionally(response.error().exception());
                } else {
                    future.complete(response.clientMetricsResources());
                }
            }
Returns the broker id pertaining to the given resource, or null if the resource is not associated
with a particular broker.
clients/src/main/java/org/apache/kafka/clients/admin/KafkaAdminClient.java