Macro exec_d_program_output_key 

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

Construct a ExecDProgramOutputKey value at compile time.

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

Examples:

use libcnb_data::exec_d::ExecDProgramOutputKey;
use libcnb_data::exec_d_program_output_key;

let key: ExecDProgramOutputKey = exec_d_program_output_key!("PATH");