Added the TriFunction functional interface

src/main/java/lsh/ext/gson/IBuilder3.java

@@ -10,6 +10,23 @@ public interface IBuilder3<A1, A2, A3, R> {
 
 	R build();
 
+	static <A1, A2, A3, R> IBuilder3<A1, A2, A3, R> of(
+			final TriConsumer<? super A1, ? super A2, ? super A3> consume,
+			final Supplier<? extends R> build
+	) {
+		return new IBuilder3<>() {
+			@Override
+			public void accept(final A1 a1, final A2 a2, final A3 a3) {
+				consume.accept(a1, a2, a3);
+			}
+
+			@Override
+			public R build() {
+				return build.get();
+			}
+		};
+	}
+
 	interface ILookup<A1, A2, A3, R> {
 
 		Supplier<IBuilder3<A1, A2, A3, R>> lookup(TypeToken<? super R> typeToken);

src/main/java/lsh/ext/gson/TriConsumer.java

@@ -0,0 +1,8 @@
+package lsh.ext.gson;
+
+@FunctionalInterface
+public interface TriConsumer<T, U, V> {
+
+	void accept(T t, U u, V v);
+
+}