public PaginatedParallelScanList<T> parallelScan(DynamoDBScanExpression scanExpression, int totalSegments) {
        return mapper.<T>parallelScan(model.targetType(), scanExpression, totalSegments);
    }
Scans through an Amazon DynamoDB table on logically partitioned segments
in parallel and returns the matching results in one unmodifiable list of
instantiated objects.
@param scanExpression The scan expression.
@param totalSegments The total segments.
@return The scan results.
@see com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper#parallelScan
aws-java-sdk-dynamodb/src/main/java/com/amazonaws/services/dynamodbv2/datamodeling/DynamoDBTableMapper.java