code: public ScanResultPage<T> scanPage(DynamoDBScanExpression scanExpression) {
          return mapper.<T>scanPage(model.targetType(), scanExpression);
      }
docs: Scans through an Amazon DynamoDB table and returns a single page of
  matching results.
  @param scanExpression The scan expression.
  @return The scan results.
  @see com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper#scanPage