use opengl_registry::Registry;

let registry = Registry::retrieve().unwrap();

for command in registry.commands() {
    println!("Command {}", command.prototype().name());
    println!("  Return type: {}", command.prototype().return_type());
    println!("  Parameters:");

    for param in command.parameters() {
        println!("  {} {}", param.get_type(), param.name());
    }
}