code: public TriggerConfig withTriggerEvents(String... triggerEvents) {
          if (this.triggerEvents == null) {
              setTriggerEvents(new com.amazonaws.internal.SdkInternalList<String>(triggerEvents.length));
          }
          for (String ele : triggerEvents) {
              this.triggerEvents.add(ele);
          }
          return this;
      }
docs: <p>
  The event type or types for which notifications are triggered.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setTriggerEvents(java.util.Collection)} or {@link #withTriggerEvents(java.util.Collection)} if you want
  to override the existing values.
  </p>
  
  @param triggerEvents
  The event type or types for which notifications are triggered.
  @return Returns a reference to this object so that method calls can be chained together.
  @see TriggerEventType