Angular $rootScope in run method

rootscope_in_run.js

var renderer2 = angular.module('pak', ['pak.filters', 'pak.services',...]);

renderer2.run(['$rootScope', function($rootScope) {
    $rootScope.some_function = function() {
         console.log('HELLO WORLD!!!!');
    };
    // function is available in all CHILD SCOPES
}]);