mc_rebalance_datapack/data/tetra/modules/sword/heavy_blade.json

{
    "variants": [
        {
            "materials": [ "tetra:metal/", "tetra:stone/", "tetra:wood/" ],
            "key": "heavy_blade/",
            "extract": {
                "availableTextures": [ "metal", "shiny", "grainy", "crude", "tconstruct" ],
                "models": [ { "location": "tetra:item/module/sword/blade/heavy/" } ]
            }
        }
    ]
}