Sounds not generating

SoundGen.java

package net.vercte.satchels.neoforge.datagen.assets;

import net.minecraft.data.PackOutput;
import net.neoforged.neoforge.common.data.ExistingFileHelper;
import net.neoforged.neoforge.common.data.SoundDefinition;
import net.neoforged.neoforge.common.data.SoundDefinitionsProvider;
import net.vercte.satchels.ModSounds;
import net.vercte.satchels.Satchels;

public class SoundGen extends SoundDefinitionsProvider {
    public SoundGen(PackOutput output, ExistingFileHelper helper) {
        super(output, Satchels.ID, helper);
    }

    @Override
    public void registerSounds() {
        add(ModSounds.SATCHEL_OPEN, SoundDefinition.definition()
                .with(
                        sound("satchels:satchel_open")
                                .volume(0.8f)
                )
                .subtitle("sound.satchels.satchel_open")
        );

        add(ModSounds.SATCHEL_CLOSE, SoundDefinition.definition()
                .with(
                        sound("minecraft:item.bundle.drop_contents")
                                .pitch(1.2f)
                )
                .subtitle("sound.satchels.satchel_close")
        );
    }
}

sounds.json

{
  "satchel_open": {
    "sounds": [
      {
        "name": "satchels:satchel_open",
        "volume": 0.5
      }
    ],
    "subtitle": "sound.satchels.satchel_open"
  }
}