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: disk_rowset.rs
    path of file: ./repos/risinglight/src/storage/secondary/rowset
    
    the code of the file until where you have to start completion: // Copyright 2024 RisingLight Project Authors. Licensed under Apache-2.0.

use std::path::PathBuf;
use std::sync::{Arc, Mutex};

use bytes::Bytes;
use itertools::Itertools;
use mok
    
    async fn test_get_start_id() {
        let tempdir = tempfile::tempdir().unwrap();
        let rowset = helper_build_rowset_with_first_key_recorded(&tempdir).await;

        {
            let start_rid = match rowset.start_rowid(Some(&DataValue::Int32(222))).await {
                ColumnSeekPosition::RowId(x) => x,
                _ => panic!("Unable to reach the branch"),
            };
            assert_eq!(start_rid, 196_u32);
        }
        {
            let start_rid = match rowset.start_rowid(Some(&DataValue::Int32(10000))).await {
                ColumnSeekPosition::RowId(x) => x,
                _ => panic!("Unable to reach the branch"),
            };
            assert_eq!(start_rid, 252_u32);
        }
    }