code: public AdminCreateUserRequest withDesiredDeliveryMediums(String... desiredDeliveryMediums) {
          if (this.desiredDeliveryMediums == null) {
              setDesiredDeliveryMediums(new java.util.ArrayList<String>(desiredDeliveryMediums.length));
          }
          for (String ele : desiredDeliveryMediums) {
              this.desiredDeliveryMediums.add(ele);
          }
          return this;
      }
docs: <p>
  Specify <code>"EMAIL"</code> if email will be used to send the welcome message. Specify <code>"SMS"</code> if the
  phone number will be used. The default value is <code>"SMS"</code>. More than one value can be specified.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setDesiredDeliveryMediums(java.util.Collection)} or
  {@link #withDesiredDeliveryMediums(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param desiredDeliveryMediums
  Specify <code>"EMAIL"</code> if email will be used to send the welcome message. Specify <code>"SMS"</code>
  if the phone number will be used. The default value is <code>"SMS"</code>. More than one value can be
  specified.
  @return Returns a reference to this object so that method calls can be chained together.
  @see DeliveryMediumType