AngularJS 1.2.x

var app = angular.module('plunker', []);

    app
        .provider('$rootProvider1', function() {
            console.log('Provider 1');
            this.$get = function() {};
        })
        .config(function() {
            console.log('Config');
        })
        .provider('$rootProvider2', function() {
            console.log('Provider 2');
            this.$get = function() {};
        });

<!DOCTYPE html>
<html ng-app="plunker">

  <head>
    <meta charset="utf-8" />
    <title>AngularJS Plunker</title>
    <script>document.write('<base href="' + document.location + '" />');</script>
    <link rel="stylesheet" href="style.css" />
    <script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.16/angular.js" data-semver="1.3.16"></script>
    <script src="app.js"></script>
  </head>

</html>

/* Put your css in here */