System:App:modulesAwaitingInstallAlert
From Aspen Documentation
Displays a single-line box with a link to the Settings module alerting the user of modules awaiting install.
Since 1.0
Examples
print $this->APP->modulesAwaitingInstallAlert();
The above command will output a basic box listing the modules awaiting install:
<div class="notice"><em>You have new modules that have not yet been installed. <a href="http://yourdomain.com/aspen-framework/admin/settings" title="Click to View">Click to View</a> </em></div>