docs: public Object invokeMethod(String name, Object args) {
          try {
              return getMetaClass().invokeMethod(this, name, args);
          } catch (MissingMethodException e) {
              // let's apply the method to each item in the collection
              List answer = new ArrayList(size());
              for (Object element : this) {
                  Object value = InvokerHelper.invokeMethod(element, name, args);
                  answer.add(value);
              }
              return answer;
          }
      }