paper-mc/src/main/java/net/minecraft/server/IInventory.java

package net.minecraft.server;


public interface IInventory {

    public abstract int a();

    public abstract ItemStack a(int i);

    public abstract ItemStack a(int i, int j);

    public abstract void a(int i, ItemStack itemstack);

    public abstract String b();

    public abstract int c();

    public abstract void d();

    public abstract boolean a_(EntityPlayer entityplayer);

    public abstract ItemStack[] getContents(); // CraftBukkit
}