Function truncate_string2 

pub fn truncate_string2(
    s: &str,
    length: usize,
    encoding: Encoding,
) -> Result<(Vec<u8>, Option<&str>)>

Available on crate feature utils-str only.

Truncate a string to a specified length, encoding it with the given encoding. Output size may less than or equal to the specified length. Returns the encoded bytes and the remaining string.