controller.php

<?php
namespace Concrete\Package\AuthorProfile;

use Concrete\Core\Package\Package;
use Concrete\Core\Backup\ContentImporter;

class Controller extends Package
{
    /**
     * @var string package handle
     */
    protected $pkgHandle = 'author_profile';

    /**
     * @var string required concrete5 version
     */
    protected $appVersionRequired = '9.0.0';

    /**
     * @var string package version
     */
    protected $pkgVersion = '1.2.1';

    /**
     * @var bool remove \Src from package namespace
     */
    protected $pkgAutoloaderMapCoreExtensions = true;

    /**
     * Returns the translated package description.
     *
     * @return string
     */
    public function getPackageDescription()
    {
        return t("Author Profile Block and Author's Page List Block");
    }

    /**
     * Returns the installed package name.
     *
     * @return string
     */
    public function getPackageName()
    {
        return t('Author Profile');
    }

    /**
     * Install process of the package.
     */
    public function install()
    {
        $pkg = parent::install();
        $ci = new ContentImporter();
        $ci->importContentFile($pkg->getPackagePath() . '/config/install.xml');
    }

    /**
     * {@inheritdoc}
     */
    public function upgrade()
    {
        parent::upgrade();

        $ci = new ContentImporter();
        $ci->importContentFile($this->getPackagePath() . '/config/install.xml');
    }

    /**
     * Startup process of the package.
     */
    public function on_start()
    {
        /** @var \Concrete\Core\Application\Service\UserInterface\Help\BlockTypeManager $blockTypeManager */
        $blockTypeManager = $this->app->make('help/block_type');
        $blockTypeManager->registerMessages([
            'author_profile' => [t('You can show informations about the author of current page.'), ''],
            'author_page_list' => [t("Author's Page List blocks creates a navigation menu that shows pages created by the current page's author. You can also use this block on Public Profile single page."), ''],
        ]);
    }
}