You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: reverse_reader.rs
    path of file: ./repos/parseable/server/src/utils/arrow
    
    the code of the file until where you have to start completion: /*
 * Parseable Server (C) 2022 - 2024 Parseable, Inc.
 *
 * This program is free software: you
    
    fn test_multiple_row_multiple_rbs() {
        let buf = write_mem(&[rb(1), rb(2), rb(3)]);
        let reader = Cursor::new(buf);
        let mut reader = get_reverse_reader(reader).unwrap();
        let rb = reader.next().unwrap().unwrap();
        assert_eq!(rb.num_rows(), 3);
        let col1_val: Vec<i64> = rb
            .column(0)
            .as_primitive::<Int64Type>()
            .iter()
            .flatten()
            .collect();
        assert_eq!(col1_val, vec![0, 1, 2]);

        let rb = reader.next().unwrap().unwrap();
        assert_eq!(rb.num_rows(), 2);

        let rb = reader.next().unwrap().unwrap();
        assert_eq!(rb.num_rows(), 1);
    }