['BatchGetItem' => ['input_token' => 'RequestItems', 'output_token' => 'UnprocessedKeys'], 'ListTables' => ['input_token' => 'ExclusiveStartTableName', 'limit_key' => 'Limit', 'output_token' => 'LastEvaluatedTableName', 'result_key' => 'TableNames'], 'Query' => ['input_token' => 'ExclusiveStartKey', 'limit_key' => 'Limit', 'output_token' => 'LastEvaluatedKey', 'result_key' => 'Items'], 'Scan' => ['input_token' => 'ExclusiveStartKey', 'limit_key' => 'Limit', 'output_token' => 'LastEvaluatedKey', 'result_key' => 'Items']]];