guava/src/com/google/common/reflect/Invokable.java
public static <T> Invokable<T, T> from(Constructor<T> constructor) {
    return new ConstructorInvokable<T>(constructor);
  }
public static <T> Invokable<T, T> from(Constructor<T> constructor) {
    return new ConstructorInvokable<T>(constructor);
  }
Returns {@link Invokable} of {@code constructor}.