Please Help Debug This MCPE Header File

Container.h

#pragma once
#include "string"

class ContainerListener;
class ItemInstance;
class BlockSource;
class CompoundTag;

//These Are Wrong
class Vec3;
class Random;


class Container{
public:
	
	Container(ContainerType);
	Container(ContainerType, const std::string&, bool);
	
	virtual ~Container();
	virtual void addListener(ContainerListener*);
	virtual void removeListener(ContainerListener*);
	virtual void getItem(int) const;
	virtual void addItem(ItemInstance*);
	virtual void addItemToFirstEmptySlot(ItemInstance*);
	virtual void setItem(int, ItemInstance*);
	virtual void removeItem(int, int);
	virtual void getRandomEmptySlot(Random&);
	virtual void dropContents(BlockSource&, const Vec3&);
	virtual void getName() const;
	virtual void getContainerSize() const;
	virtual void getMaxStackSize() const;
	virtual void startOpen(Player&);
	virtual void stopOpen(Player&);
	virtual void getSlotCopies() const;
	virtual void getSlots();
	virtual void getItemCount(int);
	virtual void canPushInItem(int, int, ItemInstance*);
	virtual void canPullOutItem(int, int, ItemInstance*);
	virtual void setContainerChanged(int);
	virtual void setCustomName(const std::string&);
	virtual void hasCustomName() const;
	virtual void readAdditionalSaveData(const CompoundTag&);
	virtual void addAdditionalSaveData(CompoundTag&);
};