Java 8 - Function abstraction can be difficult. Any Ideas to make it better?

FunctionCast.java

	@SuppressWarnings("unchecked") // It's a cast, I am responsible.
	private void callToMethod(int i, int j) {
		if(f instanceof BiFunction){
			BiFunction<Integer, Integer, Boolean> callable = (BiFunction<Integer, Integer, Boolean>) f;
			callable.apply(0, 1);
		} else if(f instanceof BiConsumer){
			BiConsumer<Integer, Integer> callable = (BiConsumer<Integer, Integer>) f;
			callable.accept(i, j);
		}
	}