MCCustomSkinLoader/Forge/Common/source/net/minecraftforge/fml/ExtensionPoint.java

package net.minecraftforge.fml;

import java.util.function.BiPredicate;
import java.util.function.Supplier;

import org.apache.commons.lang3.tuple.Pair;

public class ExtensionPoint<T> {
    public static ExtensionPoint<Pair<Supplier<String>, BiPredicate<String, Boolean>>> DISPLAYTEST;
}