for (BiAction<? super A, ? super B> action : actions) {
                    action.execute(a, b);
                }
            }
        };
    }

    public static <A> BiAction<A, Object> usingFirstArgument(final Action<? super A> action) {
        return new BiAction<A, Object>() {
            @Override
            public void execute(A a, Object o) {
                action.execute(a);
            }
        };

    def "can wrap an action into a bi action that ignores second argument"() {
        given:
        Action<List<String>> action = {a -> a << "added by action" }
        BiAction<List<String>, Object> biAction = BiActions.usingFirstArgument(action)
        def argument = []

        when:
        biAction.execute(argument, null)

        then:
        argument == ["added by action"]
    }