20        """ Loads all variables from collections into variable manager """ 
   21        excluded = [
'utils', 
'name', 
'value']
 
   22        for collection 
in dir(vc):
 
   23            if (collection.startswith(
'__') 
or collection 
in excluded):
 
   25            var_collection = getattr(vc, collection)
 
   26            for variable_name 
in var_collection:
 
   27                variable = vm.getVariable(variable_name)
 
   28                self.assertNotEqual(variable, 
None)