This is a directive for DPI (Documento Personal de Identificación, something like a SSN in Guatemala).
You may use it as a bower component:
bower install ngacw-dpi
Or alternatively:
npm install angular-dpi-validator
yarn add angular-dpi-validator
You may as well download the javascript file and use it yourself.
First of all, you need to include the script in your HTML file.
<script type="text/javascript" src="node_modules/ngacw-dpi/src/ngacw-dpi.directive.js"></script>
Then, you need to modify your app.js file to include the dependency.
angular.module('yourModuleName', ['acw.directives'])
Finally, add it as an attribute to your inputs or components that depend on ng-model.
<input type="text" ng-model="dpi" dpi />
Cheers!