Ported to 1.16.2-pre

src/main/java/appeng/mixins/GenerationSettingsAccessor.java

@@ -0,0 +1,27 @@
+package appeng.mixins;
+
+import net.minecraft.world.biome.GenerationSettings;
+import net.minecraft.world.gen.feature.ConfiguredFeature;
+import net.minecraft.world.gen.feature.ConfiguredStructureFeature;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import java.util.List;
+import java.util.function.Supplier;
+
+@Mixin(GenerationSettings.class)
+public interface GenerationSettingsAccessor {
+
+    @Accessor
+    List<List<Supplier<ConfiguredFeature<?, ?>>>> getFeatures();
+
+    @Accessor
+    void setFeatures(List<List<Supplier<ConfiguredFeature<?, ?>>>> features);
+
+    @Accessor
+    List<Supplier<ConfiguredStructureFeature<?, ?>>> getStructureFeatures();
+
+    @Accessor
+    void setStructureFeatures(List<Supplier<ConfiguredStructureFeature<?, ?>>> structureFeatures);
+
+}