#![allow(dead_code)]
pub fn read_file_chunk(path: &str, offset: usize, length: usize) -> Result<String, std::io::Error> {
use std::fs::File;
use std::io::{Read, Seek, SeekFrom};
let mut file = File::open(path)?;
file.seek(SeekFrom::Start(offset as u64))?;
let mut buffer = vec![0u8; length];
let bytes_read = file.read(&mut buffer)?;
buffer.truncate(bytes_read);
Ok(String::from_utf8_lossy(&buffer).to_string())
}