public static <K, V> ApiResult<K, V> completed(K key, V value) {
            return new ApiResult<>(
                Collections.singletonMap(key, value),
                Collections.emptyMap(),
                Collections.emptyList()
            );
        }
Get the lookup strategy that is responsible for finding the brokerId
which will handle each respective key.

@return non-null lookup strategy
clients/src/main/java/org/apache/kafka/clients/admin/internals/AdminApiHandler.java