I’m struggling to deal with the textureing of shields.

I have the current code https://github.com/RealYusufIsmail-Mc-Mods/Armour-and-Tools-Mod/blob/main/src/main/kotlin/io/github/realyusufismail/armourandtoolsmod/core/init/ItemInit.kt#L235 but I don’t get how to make the texturing of the shield work. Like link with it the shield json

the json part

	{
    "overrides": [
        {
            "predicate": {
                "pulling": 0
            },
            "model": "merctool:item/carbon_shield_relaxed"
        },
        {
            "predicate": {
                "pulling": 1
            },
            "model": "merctool:item/carbon_shield_blocking"
	        }
    ]
}
	

or the Item properties thing 

	    //###### ###### ###### ###### ###### ######
    public static void make_shield_shield(Item shield) {
        ItemProperties.register(shield, new ResourceLocation("pull"), (itemstack, warudo, le, p_174638_) -> {
        //ItemModelsProperties.register(item, new ResourceLocation("pull"), (itemstack, warudo, le) -> {
	            if (le == null) {
                return 0.0F;
            } else {
                float pull = (float)((( itemstack.getUseDuration() - le.getUseItemRemainingTicks() ) % 5 ) / 5.0F);
                //System.out.println( " ticks = " + pull );
                
                return (le.getUseItem() != itemstack )? 0.0F : pull; 
                        //(itemstack.getUseDuration() - le.getUseItemRemainingTicks()) / 20.0F;
            }
        });
	        ItemProperties.register(shield, new ResourceLocation("pulling"), (itemstack, warudo, le, p_174638_) -> {
        //ItemModelsProperties.register(item, new ResourceLocation("pulling"), (itemstack, warudo, le) -> {
            return (le != null && le.getUseItem() == itemstack) ? 1.0F : 0.0F;
        });
    }
	

 

Getting the item to recognise the texture so a mix of both