code: public java.util.List<String> getMatchingEventTypes() {
          if (matchingEventTypes == null) {
              matchingEventTypes = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return matchingEventTypes;
      }
docs: <p>
  The type of email sending events to publish to the event destination.
  </p>
  
  @return The type of email sending events to publish to the event destination.
  @see EventType