Macro pack_items 

macro_rules! pack_items {
    (
        $(
            $path:expr => $bytes:expr
            $(; ext=$ext:expr)?
            $(; type=$type_path:expr)?
        ),* $(,)?
    ) => { ... };
}

Builds a Vec<PackItem> from a list of entries. Each entry specifies a path and its raw contents; optional query-style suffixes allow specifying an explicit original extension or a type path as well.

Examples:

use bevy_dlc::pack_items;

let items = pack_items![
    "note.txt" => b"hello",
    // override the extension that would otherwise be inferred
    "other" => b"data"; ext="bin",
    // supply a type path to help the runtime choose a loader (optional)
    "model" => b"objdata"; type="bevy::gltf::Gltf",
];