code: public static <T extends ParameterDescription> ElementMatcher.Junction<T> isMandated() {
          return new ModifierMatcher<T>(ModifierMatcher.Mode.MANDATED);
      }
docs: Matches a parameter description for a {@code mandated} parameter.
  
  @param <T> The type of the matched object.
  @return A matcher for a {@code mandated} parameter.