String::from_utf8?

[t-moe]

Im using nom to parse binary data, coming from a modem. The data is sometimes uft8 and sometimes other binary data. At some point I want to convert from u8 slices to a heapless String...

struct Request
{
    method: String<5>,
    url: String<120>,
    version: String<8>
}

fn request_line(i: &[u8]) -> IResult<&[u8], Request, VerboseError<&[u8]>> {
// ....
}

Currently I use core::str::from_utf8(method).unwrap().into() to convert from the u8 slice into the String<...>.
Is there another, simpler way? Should we add a from_uft8 method to heapless::String, similar to how std has one?