online documentation for the Help Page Test module.', [':url' => 'http://www.example.com']); case 'help_page_test.has_help': return t('I have help!'); case 'help_page_test.test_array': return ['#markup' => 'Help text from help_page_test_help module.']; } // Ensure that hook_help() can return an empty string and not cause the block // to display. return ''; }