How can I make a geckolib entity with an item in his hand?

So far I have made this as my code:

package net.asestefan.mutationcraft.entity.client;

import com.mojang.blaze3d.vertex.PoseStack;
import com.mojang.blaze3d.vertex.VertexConsumer;
import net.asestefan.mutationcraft.Mutationcraft;
import net.asestefan.mutationcraft.entity.custom.InvokerEntity;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.ItemInHandRenderer;
import net.minecraft.client.renderer.MultiBufferSource;
import net.minecraft.client.renderer.RenderType;
import net.minecraft.client.renderer.entity.EntityRendererProvider;
import net.minecraft.client.renderer.texture.OverlayTexture;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.item.ItemStack;
import software.bernie.geckolib3.geo.render.built.GeoBone;
import software.bernie.geckolib3.renderers.geo.GeoEntityRenderer;
import software.bernie.geckolib3.util.RenderUtils;

import javax.annotation.Nullable;

public class InvokerRenderer extends GeoEntityRenderer<InvokerEntity> {
InvokerEntity invoker;
public InvokerRenderer(EntityRendererProvider.Context context) {
super(context, new InvokerModel());
this.shadowRadius = 0.2f;
}
@Override
public void renderRecursively(GeoBone bone, PoseStack stack, VertexConsumer bufferIn, int packedLightIn, int packedOverlayIn, float red, float green, float blue, float alpha) {
if (bone.getName().equals("item")) {
stack.pushPose();
RenderUtils.translate(bone, stack);
stack.translate(0, -0.10, 0);
stack.scale(0.75f, 0.75f, 0.75f);
ItemStack itemstack = invoker.getMainHandItem();
if(!itemstack.isEmpty()){
Minecraft.getInstance().getItemRenderer().render(itemstack, ItemDisplayContext.THIRT_PERSON_RIGHT_HAND, packedLightIn, OverlayTexture.NO_OVERLAY, stack, bufferIn );
}
}
}






@Override
public ResourceLocation getTextureLocation(InvokerEntity instance) {
return new ResourceLocation(Mutationcraft.MOD_ID, "textures/entity/invoker.png");
}

@Override
public RenderType getRenderType(InvokerEntity animatable, float partialTicks, PoseStack stack,
@Nullable MultiBufferSource renderTypeBuffer,
@Nullable VertexConsumer vertexBuilder, int packedLightIn,
ResourceLocation textureLocation) {
return super.getRenderType(animatable, partialTicks, stack, renderTypeBuffer, vertexBuilder, packedLightIn, textureLocation);
}
}

But the highlighted text keeps giving me errors regardless of what I do, especially the "ItemDisplayContext.THIRD_PERSON_RIGHT_HAND" part. Please help