code: public MetricAlarm withOKActions(String... oKActions) {
          if (this.oKActions == null) {
              setOKActions(new com.amazonaws.internal.SdkInternalList<String>(oKActions.length));
          }
          for (String ele : oKActions) {
              this.oKActions.add(ele);
          }
          return this;
      }
docs: <p>
  The actions to execute when this alarm transitions to the <code>OK</code> state from any other state. Each action
  is specified as an Amazon Resource Name (ARN).
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setOKActions(java.util.Collection)} or {@link #withOKActions(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param oKActions
  The actions to execute when this alarm transitions to the <code>OK</code> state from any other state. Each
  action is specified as an Amazon Resource Name (ARN).
  @return Returns a reference to this object so that method calls can be chained together.