code: public DescribeScheduledActionsRequest withScheduledActionNames(String... scheduledActionNames) {
          if (this.scheduledActionNames == null) {
              setScheduledActionNames(new com.amazonaws.internal.SdkInternalList<String>(scheduledActionNames.length));
          }
          for (String ele : scheduledActionNames) {
              this.scheduledActionNames.add(ele);
          }
          return this;
      }
docs: <p>
  The names of one or more scheduled actions. You can specify up to 50 actions. If you omit this parameter, all
  scheduled actions are described. If you specify an unknown scheduled action, it is ignored with no error.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setScheduledActionNames(java.util.Collection)} or {@link #withScheduledActionNames(java.util.Collection)}
  if you want to override the existing values.
  </p>
  
  @param scheduledActionNames
  The names of one or more scheduled actions. You can specify up to 50 actions. If you omit this parameter,
  all scheduled actions are described. If you specify an unknown scheduled action, it is ignored with no
  error.
  @return Returns a reference to this object so that method calls can be chained together.