Macro dns_characters 

macro_rules! dns_characters {
    ($value:expr $(,)?) => { ... };
}

Create a new Characters from a byte slice. The first byte of the slice will be the length of the sequence. Only insert the characters, not the length. The maximum length of the sequence is 255. This macro accepts an expression as input, which is evaluated at compile time. If you want to create a Characters from a byte slice of unknown length, use the Characters::new function instead.

Example

use flex_dns::characters::Characters;
use flex_dns::dns_characters;

const CHARACTERS: Characters = dns_characters!(b"Hello World!");