docs: 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;
      }