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// ANCHOR: here
use std::fs::File;
use std::io;
use std::io::Read;
fn read_username_from_file() -> Result<String, io::Error> {
let mut username_file = File::open("hello.txt")?;
let mut username = String::new();
username_file.read_to_string(&mut username)?;
Ok(username)
}
// ANCHOR_END: here
fn main() {
let username = read_username_from_file().expect("Unable to get username");
}
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