Macro rocket_include_handlebars::handlebars_resources_initialize

macro_rules! handlebars_resources_initialize {
    ( $handlebars:expr, $($name:expr, $path:expr), * $(,)* ) => { ... };
}

Used in the fairing of HandlebarsResponse to include Handlebars files into your executable binary file. You need to specify each file's name and its path. In order to reduce the compilation time and allow to hot-reload templates, files are compiled into your executable binary file together, only when you are using the release profile.