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<?phpnamespace Aws\DynamoDb;
 
 use Aws\Api\Parser\Crc32ValidatingParser;
 use Aws\AwsClient;
 use Aws\ClientResolver;
 use Aws\HandlerList;
 use Aws\Middleware;
 use Aws\RetryMiddleware;
 
 /**
 * This client is used to interact with the **Amazon DynamoDB** service.
 *
 * @method \Aws\Result batchGetItem(array $args = [])
 * @method \GuzzleHttp\Promise\Promise batchGetItemAsync(array $args = [])
 * @method \Aws\Result batchWriteItem(array $args = [])
 * @method \GuzzleHttp\Promise\Promise batchWriteItemAsync(array $args = [])
 * @method \Aws\Result createTable(array $args = [])
 * @method \GuzzleHttp\Promise\Promise createTableAsync(array $args = [])
 * @method \Aws\Result deleteItem(array $args = [])
 * @method \GuzzleHttp\Promise\Promise deleteItemAsync(array $args = [])
 * @method \Aws\Result deleteTable(array $args = [])
 * @method \GuzzleHttp\Promise\Promise deleteTableAsync(array $args = [])
 * @method \Aws\Result describeTable(array $args = [])
 * @method \GuzzleHttp\Promise\Promise describeTableAsync(array $args = [])
 * @method \Aws\Result getItem(array $args = [])
 * @method \GuzzleHttp\Promise\Promise getItemAsync(array $args = [])
 * @method \Aws\Result listTables(array $args = [])
 * @method \GuzzleHttp\Promise\Promise listTablesAsync(array $args = [])
 * @method \Aws\Result putItem(array $args = [])
 * @method \GuzzleHttp\Promise\Promise putItemAsync(array $args = [])
 * @method \Aws\Result query(array $args = [])
 * @method \GuzzleHttp\Promise\Promise queryAsync(array $args = [])
 * @method \Aws\Result scan(array $args = [])
 * @method \GuzzleHttp\Promise\Promise scanAsync(array $args = [])
 * @method \Aws\Result updateItem(array $args = [])
 * @method \GuzzleHttp\Promise\Promise updateItemAsync(array $args = [])
 * @method \Aws\Result updateTable(array $args = [])
 * @method \GuzzleHttp\Promise\Promise updateTableAsync(array $args = [])
 */
 class DynamoDbClient extends AwsClient
 {
 public static function getArguments()
 {
 $args = parent::getArguments();
 $args['retries']['default'] = 11;
 $args['retries']['fn'] = [__CLASS__, '_applyRetryConfig'];
 $args['api_provider']['fn'] = [__CLASS__, '_applyApiProvider'];
 
 return $args;
 }
 
 /**
 * Convenience method for instantiating and registering the DynamoDB
 * Session handler with this DynamoDB client object.
 *
 * @param array $config Array of options for the session handler factory
 *
 * @return SessionHandler
 */
 public function registerSessionHandler(array $config = [])
 {
 $handler = SessionHandler::fromClient($this, $config);
 $handler->register();
 
 return $handler;
 }
 
 /** @internal */
 public static function _applyRetryConfig($value, array &$args, HandlerList $list)
 {
 if (!$value) {
 return;
 }
 
 $list->appendSign(
 Middleware::retry(
 RetryMiddleware::createDefaultDecider($value),
 function ($retries) {
 return $retries
 ? RetryMiddleware::exponentialDelay($retries) / 2
 : 0;
 }
 ),
 'retry'
 );
 }
 
 /** @internal */
 public static function _applyApiProvider($value, array &$args, HandlerList $list)
 {
 ClientResolver::_apply_api_provider($value, $args, $list);
 $args['parser'] = new Crc32ValidatingParser($args['parser']);
 }
 }
 
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