pub fn take_varint<'a, E>(i: &'a [u8]) -> IResult<&'a [u8], usize, E>where E: ParseError<&'a [u8]>,
Parses a varint.
assert_eq!(nom_varint::take_varint::<()>(&[0x0b]), Ok((&[] as &[u8], 0x0b)));