its a doozie

src/main/java/carpet/fakes/BlockPredicateInterface.java

@@ -3,7 +3,7 @@ package carpet.fakes;
 import carpet.script.value.Value;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
-import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtCompound;
 import net.minecraft.tag.Tag;
 
 import java.util.Map;
@@ -13,5 +13,5 @@ public interface BlockPredicateInterface
     BlockState getCMBlockState();
     Tag<Block> getCMBlockTag();
     Map<Value, Value> getCMProperties();
-    CompoundTag getCMDataTag();
+    NbtCompound getCMDataTag();
 }

src/main/java/carpet/fakes/BlockStateArgumentInterface.java

@@ -1,8 +1,8 @@
 package carpet.fakes;
 
-import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtCompound;
 
 public interface BlockStateArgumentInterface
 {
-    CompoundTag getCMTag();
+    NbtCompound getCMTag();
 }