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: bytes.rs
    path of file: ./repos/artichoke/artichoke-backend/src/convert
    
    the code of the file until where you have to start completion: use core::mem;
use std::borrow::Cow;
use std::ffi::{OsStr, OsString};

use scolapasta_path::{os_str_to_bytes, os_string_to_bytes};
use spinoso_string::String;

use crate::convert::BoxUnboxVmValue;
use crate::core::TryConvertMut;
use crate::error::Error;
use crate::value::Value;
use crate::Artichoke;

impl TryConvertMut<Vec<u8>, Value> for Artichoke {
    type Error = Error;

    fn try_convert_mut(&mut self, value: Vec<u8>) -> Result<Value, Self::Error> {
        let s = String::utf8(value);
        let value = String::alloc_value(s, self)?;
        Ok(self.protect(value))
    }
}

impl TryConvertMut<&[u8], Value> for Artichoke {
    type Error = Error;

    fn try_convert_mut(&mut self, value: &[u8]) -> Result<Value, Self::Error> {
    
    
    fn convert_with_trailing_nul() {
        let mut interp = interpreter();
        let bytes: &[u8] = &[0];
        let value = interp.try_convert_mut(bytes).unwrap();
        let retrieved_bytes = value.try_convert_into_mut::<&[u8]>(&mut interp).unwrap();
        assert_eq!(bytes.as_bstr(), retrieved_bytes.as_bstr());

        let len = value.funcall(&mut interp, "bytesize", &[], None).unwrap();
        let len = len.try_convert_into::<usize>(&interp).unwrap();
        assert_eq!(len, 1);

        let empty = value.funcall(&mut interp, "empty?", &[], None).unwrap();
        let empty = empty.try_convert_into::<bool>(&interp).unwrap();
        assert!(!empty);

        let zero = interp.convert(0);
        let one = interp.convert(1);

        let str_bytes = value.funcall(&mut interp, "bytes", &[], None).unwrap();
        let first = str_bytes.funcall(&mut interp, "[]", &[zero], None).unwrap();
        let first = first.try_convert_into::<i64>(&interp).unwrap();
        assert_eq!(first, 0_i64);

        let slice = value.funcall(&mut interp, "byteslice", &[zero, one], None).unwrap();
        let slice = slice.try_convert_into_mut::<Option<&[u8]>>(&mut interp).unwrap();
        let expected: Option<&[u8]> = Some(&[0]);
        assert_eq!(slice, expected);
    }