{
    "sources": [
        {
            "type": "directory",
            "source": "custom",
            "prefix": "custom/"
        },
        {
            "type": "directory",
            "source": "mob_effect",
            "prefix": "mob_effect/"
        },
        {
            "type": "single",
            "resource": "entity/fish/salmon"
        }
    ]
}