I am working on a fabric mod and I have issues with the ClientOnInitialize method

Question

simply put nothing inside th oninitialise method runs the public class TutorialModClient appears grey in IntelliJ .I have all the necessary entries in my fabric.mod.json : the json entries are

"entrypoints": {
        "main": [
            "net.example.vladimir.TutorialMod"
        ],
        "client": [
            "net.example.vladimir.TutorialModClient"
        ],
        "fabric-datagen": [
            "net.example.vladimir.TutorialModDataGenerator"
        ]
    },

I tried to look on the fabric API but its says about the entry points which I have done and I could not find anything else that could help:

my code for MyModClient

package net.example.me;
import ...

public class TutorialModClient implements ClientModInitializer {
    @Override
    public void onInitializeClient() {
        EntityRendererRegistry.register(ModEntities.PORCUPINE, PorcupineRenderer::new);
        EntityModelLayerRegistry.registerModelLayer(ModModelLayers.PORCUPINE, PorcupineModel::getTexturedModelData);
    }
}

I was following a tutorial by the youtube Kaupenjoe just in case.