<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def active_translations(self, language_code=None, **translated_fields):
 """ Only return objects which are translated, or have a fallback that should be displayed. Typically that's the currently active language and fallback language. This should be combined with ``.distinct()``. When ``hide_untranslated = True``, only the currently active language will be returned. """

        # Default:     (language, fallback) when hide_translated == False
        # Alternative: (language,)          when hide_untranslated == True
        language_codes = get_active_language_choices(language_code)
        return self.translated(*language_codes, **translated_fields)