Macro buildpack_id 

macro_rules! buildpack_id {
    ($value:expr) => { ... };
}

Construct a BuildpackId value at compile time.

Passing a string that is not a valid BuildpackId value will yield a compilation error.

Examples:

use libcnb_data::buildpack::BuildpackId;
use libcnb_data::buildpack_id;

let buildpack_id: BuildpackId = buildpack_id!("heroku/java");