class Activation {

  function __construct() {

    add_action(
      'admin_notices',
      array($this,"text_admin_notices")
    );

    Utils::update_option("is_activated", true);
  }

  function text_admin_notices () {
    ?>
        <div class="notice notice-success is-dismissible">
            <p> TEST MESSAGE</p>
        </div
    <?php
  }

}