[1.21.5] Custom Model Data updated, i dont know how to fix it

Apparently they changed how custom model data works, i dont know how. I want to give the item a custom texture based on the ID of custom model data, but it has changed.
{   "parent": "item/generated",   "textures": {     "layer0": "item/carrot_on_a_stick"   },   "overrides": [     {       "predicate": { "custom_model_data": 1.0 },       "model": "item/apple"     },     {       "predicate": { "custom_model_data": 2.0 },       "model": "item/goldenapple"     }   ] } 
/give @p minecraft:carrot_on_a_stick{CustomModelData:1}